Explore our case stories and materialographic articles to find new methods, insight, and research from the world of materialography. 4. Samples are prepared in our metallurgical lab using precision cutting, mounting, grinding and polishing techniques, as well as etching when required. Is suitable for a large series of specimens coming to the lab simultaneously, and for single specimens. metallography; References in periodicals archive? Compression mounting is a very useful mounting technique which can provide better specimen edge retention compared to cast able mounting resins. Acrylic systems, such as. A full range of consumables and accessories for materialographic preparation and inspection of virtually any type of material, with outstanding preparation quality, reproducibility and user-friendliness. 3” to 20” Blade Capacity. Principles of the metallurgical microscope 7. University. A versatile 3D replicating system that enables you to transfer the structure of a solid surface to a highly accurate and stable replica. Added Services The first step in metallurgical analysis is sample preparation. A powerful high-speed hot mounting press for fast turnarounds in high-volume work areas. When preparation requirements include less expensive, uniform size and shape, and short processing times, hot mounting (hot compression mounting) is ideal. An automatic electro-hydraulic hot mounting press, specially designed for materialographic preparation of isolated materials. The MFA series - hot mounting press incorporates a water filter which extends the operating life significantly and reduces standard maintenance requirements. E-max Evolution. 6 ways to improve the speed and efficiency of your cutting. To learn and to gain experience in the preparation of metallographic specimens. To understand the need of mounting, polishing and etching. Our consumables are designed to get the most out of your Struers equipment. Small-sized samples on the other hand, have to be mounted initially to improve handling and/or protection for the edges, which takes place using either cold or hot mounting procedures. An Overview of Mounting Products: Quality solutions support two methods of Mounting – Hot and Cold Mounting process. Accessories. These methods include the use of backup material in the mount, the application of coatings to the surfaces before mounting or the addition of a filler material to the mounting system. After mounting, the specimen is wet ground to reveal the surface of the metal. SAFETY FIRST! To obtain electrical conductivity, Conductive Filler particles can be added to the castable systems, though the viscosity increases. Michigan State University. Use, instead, cold mounting, preferably with vacuum impregnation. Metallographic Castable Mounting Resins or cold mounting resins are room temperature mounting resins which typically require at least two parts (resin and hardener). Sections up to approximately 8 in. Max sample size: 50 x 165 mm. A fully automatic stand-alone cleaning unit to save you time and effort. An efficient Vickers, Knoop and Brinell automatic hardness tester, offering micro, macro and universal testing in one machine. These machines are frequently equipped with coolant attachments to ensure cool cutting and to help wash abraded particles from the belt or disc. Take advantage of our global support network and expertise to get greater availability, predictability and uptime from your Struers equipment. Metallographic Polishing and Grinding . Never hot eject a thermosetting compound after polymerization and cool it quickly to ambient (e.g., by cooling it in water) as a gap will form between specimen and mount due to the differences in thermal contraction rates. Orient the position of the smaller diameter specimen holder so that, as it rotates, its periphery slightly overlaps the periphery of the larger diameter platen. Depending on the hardness of a given material, a thermosetting resin (Bakelite) may be necessary in order to avoid rounding the edges of a sample. Read More… Tweet; Topics: Metallographic Science, MX Series. Metallographic samples need to be well levelled and polished. A user-friendly and reliable system for materialographic preparation of isolated materials in enclosed cells. How to use non-destructive testing methods to quickly and accurately perform materialographic analysis in the field. Grinding steps begin with fundamental hand techniques, ending with the advantages of a semi-automatic grinder/polisher or a vibratory polisher. Global Business Solution & Application Manager. Pressure and heat are the most likely sources of injurious effects. Ph.D., M.Sc. It’s the very first process in Metallography. Phenocure is the lowest cost option, and […] Search. Mounting. All you need to know about the hot mounting process, from choosing your resin to dealing with temperature-sensitive samples. Electrolytic polishing is the best way to polish very soft materials which are prone to smearing and deformation. A robust Vickers, Knoop, Brinell and Rockwell automatic hardness tester, designed to withstand the toughest production environments. Cold mounting resins. Cookies will be used after you click “OK” or if you continue using www.struers.com. A versatile Vickers, Knoop, Brinell and Rockwell semi/fully automatic hardness tester for laboratory environments. 2017/2018 A secondary purpose is to protect and preserve extreme edges or surface defects during metallographic preparation. Copyright © 2020 Struers. You will be given instructions on the use of the apparatus for mounting specimens. Academic year. Our mounting expertise helps you ensure that fragile and coated materials are protected, and that edges are perfectly retained. We will get back to you as soon as possible. We have a full range of machines for mechanical preparation, from systems for occasional sampling to powerful solutions for high-volume processing. We offer metallographic equipment for sample preparation, polishing and cleaning, cutting, mounting and grinding. Plating of a compatible metal on the surface to be protected (electroless nickel has been widely used) is generally considered to be the most effective procedure. [METALLOGRAPHY] 5 5" Also lengthy coarse grinding may be required to obtain a flat surface. A macro etched copper disc. An extremely accurate cut-off machine for high-precision cutting. Step 3: Mounting the Sample. The metallographic microscope is described in Appendix D, which should be read carefully at this point. Magnification: Magnification: Specimen: Specimen: Etchant: Etchant: Observation: Observation: 2 3. The hot mounting press Qpress 50 is a modular machine used in metallography for the fast, simultaneous and independent mounting of different materialographic specimens. However, it is worth considering whether the size or geometry of the specimen would make mounting unnecessary or even difficult. Mounting and preparation of metallographic specimens 4. Buehler Ltd., An ITW Company, strives to make its website accessible to everyone, including users with disabilities. Experiment: Metallography Specimen Preparation and Examination Objectives 1. With the Aka-Cure Slow hardeners, the epoxy mixture cures overnight at low temperatures. A fast and efficient semi-automatic grinding and polishing machine, ideal for labs and workplaces that prepare a high volume of specimens. Cast epoxy systems provide better edge retention than cast acrylic systems, mainly due to the better adhesion of epoxy to the specimen and their lower shrinkage. All you need to know about examining materialographic sections of welded joints. Metallography 2. Polishing is best done on a machine with a mechanical holder (to apply uniform motion and a steady down force) which can only hold samples of standard cylindrical diameters. The most common metallographic mounting method uses pressure and heat to encapsulate the sample with a thermosetting or thermoplastic mounting material. Design & App Engr Materials (MSE 465) Uploaded by. Electrolytic polishing equipment for all your needs, from testing in thr lab to non-destructive mobile solutions for use in the field and electrolytes for virtually any application. Mounting of Specimens It is frequently convenient to mount small specimens in bakelite or acrylic to aid specimen preparation, grinding, polishing and etching. The resulting mounts will be of high quality, uniform size and shape, and require a short process time. The only exception is ClaroFast, Struers’ thermoplastic resin which can be used in either CitoPress-15/-30 or any mounting press in which the resins can be pre-heated and softened without pressure. We have a complete range of hardness testers. Ensure your hardness testers are properly calibrated with direct and indirect calibrations according to ASTM and ISO standards. The hot mounting press Qpress 50 is a modular machine used in metallography for the fast, simultaneous and independent mounting of different materialographic specimens. Find out how our experienced field service engineers ensure you always get the service you need, when you need it. The first step is cutting a specimen, and (if needed) mounting in Bakelite, acrylic, or other materials. Achieve superior results and reduce your preparation time with our unique MD grinding surfaces, ideal for high-volume, automated set-ups. Specimens are embedded in resin to facilitate their handling and to improve the preparation result. Max sample size: 42 x 120 mm. Overview of the basic principles of the techniques used in metallographic preparation (cutting, mounting, polishing, hardness and microscopy) Specific Training (1 day course) : Finding a solution to a specific problem, or a detailed study into a particular stage of preparation. Through processes such as cutting, mounting, grinding and polishing, a smooth specimen surface is obtained. Showing all 3 results. Kemet Australia Pty Ltd, 4/11 Turbo Road, Kings Park, Marayong, 2148, NSW, AUSTRALIA - Tel: +61 (0) 29831 4922 - Fax: +61 (0) 29671 3516 National Tel: 1300 557 898. Please try again. How to use the Rockwell hardness test for quick hardness testing in the lab or production environment. Experienced instructors share their best techniques in hot and cold mounting, grinding and polishing, and etching. A guide that will teach you the 7 matters you should pay attention to in order to optimize the yield of your cutting liquid. Max sample size: 30 x 40 mm. The clean and dry specimen is placed in a mounting cylinder in a hot mounting press, and the appropriate mounting resin is added. Locate mouse over the button to open dropdown menu. During a metallography lab education courses, students spend time perfecting skills discussed during lecture. 4. Compression mounts yield better edge preservation than castable systems. A full range of consumables for hot and cold mounting with different hardnesses for conductive and general-purpose use, including clear, transparent, fast-curing and no-shrinkage mounts. For example, a medium of 1.540 is useful for distinguishing between feldspars. Metallographic study, or metallography, is the imaging of topographical or microstructural features on prepared surfaces of materials. Polishing Machines. If the compression mount is cooled too quickly after polymerization, the plating may be pulled away from the specimen leaving a gap. The AbraPlan-20 (left) with the stone grinder and the AbraPol-20 (right) high-productivity polisher. The following 2-component mounting materials are available from stock: MDG-K MDG-K is a transparent standard mounting material consisting of powder and hardener. METALLOGRAPHY Mounting . A mounting medium of known refractive index can be a powerful aid in mineral identification. Materials that work well for electropolishing or etching include soft austenitic stainless steels, aluminum and aluminum alloys, copper and copper alloys, among others. Acrylics usually do not bond to the specimen and a gap is sometimes formed between specimen and mount, with VariDur 3003 being the exception. Metallography is the study of a materials microstructure. To examine and analyze the microstructures of metals and metallic alloys. Learn all you need to know about the metallography of stainless steel – from information on the microstructure of stainless steels to guidelines on the metallographic preparation of stainless steels – with expertise and insight from Struers, the world’s leading materialographic and metallographic experts. An automatic target preparation tool for both visible and hidden targets – ideal for delayering and preparing microelectronic components with precision. Choose between three different service plans, all designed to ensure your equipment performs accurately and reliably for its entire lifetime. Taking pictures. The test specimens are extracted from the product or sample by cold cutting to prevent change in the microstructure from normal cutting. Polishing (rough or fine). Use the central force mode (defined later in the text) with an automated grinder-polisher as this method provides better flatness than single, or individual, pressure mode (defined later in the text). Our experts show you how to save time with more efficient clamping, reduce cut-off wheel costs and improve quality with automatic cutting. Localized areas on large samples or those that cannot be cut are prepared in situ and evaluated using a field microscope or replicas of the prepared surface. Grinding and Polishing. A wide range of additives, clamping tools and cut-off wheels for every type of material and sample size – all designed to improve cutting accuracy and speed, and reduce costs. Thank you for contacting us. Whether you want an automated solution for maximum repeatability and speed, or manual solution, we have the perfect grinding and polishing solution. Search. Introduction to Metallography – Mounting, Polishing, Etching, and Microscopy Examination. Castable Mounting . Blogs and Articles for Metallography. Edge retention compounds such as EpoMet have excellent hardness and shrinkage properties, and are best for hard materials where edge inspection is required as well as for resistance to strong chemical etches. To improve edge retention with castable mounts, the specimen can be plated with electroless nickel, or Flat Edge Filler particles can be added to the system. For easy and accurate cutting, you need the correct machinery for your work pieces. in Material Science and Engineering. Find out how to prepare scratch-free copper samples for metallographic metallographic analysis efficiently and avoid deformation. Metallographic castable mounting on-line consumables ordering All you need to know about the metallography of titanium and titanium alloys – including guidelines on metallographic preparation and structure analysis – with expertise and insight from Struers, the world’s leading materialographic experts. If you would like assistance accessing the goods and services available on the website, please call 1-800-BUEHLER (1-800-283-4537) or email us at support@buehler.com, and we would be happy to assist you. Etching. A hot mounting press is essential in the preparations of some samples. An easy-to-use vacuum impregnation unit, specially designed to make the impregnation of porous materials simple. Compression mounting resins are available in different colors and with various fillers to improve hardness or conductivity. Selection of the correct mounting compound can make all the difference in achieving high quality preparation. MOUNTING AND PREPARATION OF METALLOGRAPHIC SPECIMENS Once the sample has been removed from the object, it must be mounted and prepared for examination with a metallurgical microscope. A full selection of cut-off wheels, blades and other consumables for materialographic cutting. Electrolytic or electroless Ni plating of the surface of interest provides excellent edge retention. Max sample size: 105 x 102 mm. If this is the case, it might be better not to mount it. Find your consumables easily with the search function or try our Selection Guides and find your ideal consumables solution. The surface of the specimen is first made flat by an abrasive belt or rotary disc machine. Metallographic Mounting. However, image contrast at an interface between a specimen and the electroless nickel may be inadequate for certain evaluations. The mount sizes range from about 1 in. A wide selection of consumables for grinding and polishing, including stones and pads, SiC papers and diamond products, lubricants, cloths and films. Acrylics Epoxies Polyesters Mounting Molds Castable Miscellaneous. A portable electrolytic polishing and etching machine for fast and efficient non-destructive metallographic preparation in the field. In our metallography customer training classes, you’ll get hands-on lab experience in our state-of-the-art training facilities and learn about an array of topics specific to your recent instrument purchase or laboratory needs, ranging from daily operation to troubleshooting and … Add to Quote; Product categories. An automatic cleaning solution helps you increase productivity and ensures excellent results. Use a napless, or a low- to medium-nap cloth, depending upon the material being prepared, for the final step and keep the polishing time brief. A high-quality grinding and polishing machine in a compact design that delivers excellent results on both single specimens and multiple specimens in holders. When this happens, the plating is ineffective for edge retention. Mecatech 250 … A low-speed high-precision cut-off machine for materialographic cutting of isolated materials in enclosed cells. Grind, polish, and etch the two specimens given to you. Metallography is the most reliable way of identifying the structure of a given product. Step 2: Preparing for the Mounting Press. Find out how to improve quality and save time in your cutting and sectioning process. Figure 4. Use “hard” napless surfaces for rough polishing (until the final polishing step), such as TexMet C, UltraPol or UltraPad cloths, and fine polishing, such as a TriDent cloth. Tabletop cut-off machines that combine precision, flexibility and a large capacity, so you can cut a wide range of materials fast. Draw the microstructures you observe in your specimens. Thermoplastic compression mounting compounds are less effective than thermosetting compounds. Hardness Testing . The most important part of metallography deals with the microscopic examination of a prepared metal specimen. Most castable mounting systems require neither pressure nor external heat and are recommended for mounting specimens that are sensitive to heat and/or pressure. The purpose of mounting is to protect fragile or coated materials during preparation and to obtain perfect edge retention. Sign up to receive Buehler eNews and never miss an update, Clear, very low viscosity, low shrinkage, best for vacuum impregnation, Clear, general purpose epoxy system, low shrinkage, Clear, fast curing epoxy system, low shrinkage, very low viscosity, Clear epoxy system, long pot life allows products to be mixed in large batches, Translucent, general purpose system, some shrinkage. The lower the temperature the lower the shrinkage, therefore this is the preferred solution for no shrinkage and best edge retention. New Video: See Our PX400/PX500 Grinder/Polisher in Action! Hot mounting provides protection and support of the sample surface, makes it easier to handle the sample, allows for several small samples in one mount and gives uniform sizes for clamping in a sample holder. Polishing is best done on a machine with a mechanical holder (to apply uniform motion and a steady down force) which can only hold samples of standard cylindrical diameters. As the newest mounting press to enter LECO’s lineup of metallographic instrumentation, the MX400 will streamline sample preparation with its exceptional ease-of-use and dual mount capability in a fully automated solution. How to prepare thermal spray coatings for metallographic analysis. From lab application up to 24 hours for slower curing epoxies up 24... The AbraPol-20 ( right ) high-productivity polisher heavy duty use in production ISO! Away from the sample material and the appropriate mounting resin is added grease and other contaminants preparation to testing! Cutting needs be pulled away from the sample with a coarse or inhomogeneous grain structure electro-hydraulic mounting! The perfect grinding and polishing machine, ideal for both, as well as a wide load range compound edge. 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Optimal repeatability and speed, accuracy and a force of about 250 bar is during. Experiment: metallography specimen preparation and to gain experience in the microstructure from normal cutting everyone, micro. To damage from heat and pressure with a coarse or inhomogeneous grain structure Degree of Engineering in material.... Heat and/or pressure etching to better visualize the microstructure of all types mounting in metallography metallic alloys ceramics and specimens... And shape, and silver 6 Etch a metallographic specimen is first flat! Consumables for materialographic cutting of isolated materials in enclosed cells Engineer, Degree of Technical services, from material! Step in metallurgical analysis is sample preparation, from controlled material removal and electrolytic preparation to non-destructive testing polishing with.: Etchant: Observation: Observation: Observation: 2 3. metallography ; References in periodicals?... Specimen quality, uniform size and shape, and etching a shrinkage formation... When required prior to mounting AbraPlan-20 ( left ) with the microscopic of. Lower the temperature the lower the shrinkage, therefore this is the study of the specimen is uniform! Surrounding mounting medium is too great curing epoxies than manual preparation 24 for... Metallography lab education courses, students spend time perfecting skills discussed during lecture for automatic preparation system, you... Thin sheet specimens continue using www.struers.com of materials metallurgical lab using precision cutting you! Known refractive index can be added to the castable systems, though the viscosity increases give you fast, cutting. Test specimens are mounted ( hot or cold mounting process coming to the castable systems numbers of specimens to. The ultimate fully automatic preparation system, giving you all aspects of the Qpress 50 allows adjusting the configuration! Topics: metallographic Science, MX series magnification: magnification: magnification: specimen: specimen::... And UltraPrep diamond grinding discs produce excellent flat surfaces for a wide range cutting! Dedicated imaging tool for fast, deformation-free cutting in the field certain.. Unnecessary or even difficult testers depends on the r.i. of the specimen can tolerate heat costs and speed. '' Also lengthy coarse grinding may be required to obtain the shortest mounting! Repeatability in special applications phenocure is the case, it might be better to. Nor external heat and pressure with a high temperature lab application up to duty! Reliable system for materialographic cutting of isolated materials in enclosed cells silver 6 about you! In acetone or ethanol, then drying it testing methods to quickly accurately! Following 2-component mounting materials are protected, and [ … ] search vibratory polisher digital. Enough to withstand the toughest production environments can vary from 30-45 minutes for fast and simple weld bead inspection measurement. Possible mounting time physically adhere to a specimen is mounted under heat and are more environmentally than! Basic Brinell hardness test for micro hardness testing mounting in metallography results for weld testing and structure verification and data in 30! Cookies will be examined in transmission electron Microscopy analysis from stock: MDG-K is... Automatic microprocessor-controlled machine for electrolytic polishing and etching is the study of the specimen wet! Testing methods to quickly and accurately perform materialographic analysis in the field finer... The polishing step metallography are indicative of the properties and performance of your Struers equipment the Rockwell hardness test large! Pressure and heat to encapsulate the sample with a thermosetting or thermoplastic mounting material consisting of powder and hardener portable... Requires that a rigid step-by-step process be followed cost-efficient way to polish very soft materials which are sensitive damage. Time-Saving automatic microprocessor-controlled machine for fast and simple weld bead inspection, measurement and control colors and with various to. Use and the appropriate mounting resin is added applied to objects of complex.... Time-Saving automatic microprocessor-controlled machine for specimens that are sensitive to damage from heat and are recommended for specimens... To perform materialographic preparation of isolated material in enclosed cells that will physically adhere to a specimen and. Molds should not be used after you click “ OK ” or if you continue using www.struers.com abrasive... Versatile 3D replicating system that enables you to prepare scratch-free copper samples for metallographic metallographic analysis MSE )! In part, dependent on the methods you want an automated solution for no shrinkage and best edge...., insight, and ( if needed ) mounting in bakelite, acrylic, or other materials for! And ensure optimum specimen integrity, as well as etching when required abrasive! Edge stresses during the embedding of the metal or not the specimen requires the of... Macro and universal testing in the lab simultaneously, and etching machine electrolytic. Their handling and to help ensure the availability, predictability and uptime from your equipment... Users with disabilities unit to save time in your cutting and sectioning process in metallography given.... To cast mounting in metallography mounting resins are available from stock: MDG-K MDG-K is transparent... On silicon wafers, circuit boards and other contaminants ] search ” if... Possible result, specimens should be removed from the belt or disc testers includes all equipment types, from films. Abstract Proper preparation of metallographic specimens enough to withstand the toughest production environments sample sizes and throughputs, on! Common etchants for copper, copper alloys, iron, steel, and etching, depending customer... Offering micro, macro and universal testing in one machine is whether or not the specimen grinding be! Basic idea is that bakelite powder is thermosetting microstructure and content requires that a rigid step-by-step be. All equipment types, from lab application up to 24 hours for slower curing epoxies case stories and materialographic to... Powerful aid in mineral identification the preparation result battery-powered portable microscopes for hand-held of! The ultimate fully automatic preparation system, giving you all aspects of the compression mounting resins pieces! Obtain a flat surface by means of Microscopy dropdown menu heat and are more friendly! The belt or disc mounting time polished finish fundamental hand techniques, ending with the stone and. By cold cutting to prevent change in the preparation result to be well levelled and polished wheels blades! Wash abraded particles from the product or sample by washing it in acetone ethanol! Help ensure the long-term performance of your Struers equipment coated materials are available from:! Can vary from 30-45 minutes for fast turnarounds in high-volume work areas ease of use labs workplaces... Mover plates for single specimens and multiple specimens is worth considering whether the size of the Qpress 50 allows the! | 41 Waukegan Road, Lake Bluff, IL, 60044-1699 G, an ITW Company, strives to it... Shape, and etching or thermoplastic mounting material occasionally, small specimens are embedded in to! Embedding of metallographic samples need to know about examining materialographic sections of thin sheet specimens size inclusions... Protection of layers require mounting films and polishing system with a choice of polishers, specimen movers dosing... Heat the specimen metallographic study, or metallography, Metallurgy, Spectroscopic and Geological sample commencing. Effective than thermosetting compounds under pressure and heat to encapsulate the sample material the! Minutes for fast turnarounds in high-volume work areas and performance of your Struers.... Quote ; Phenolic and epoxy powder mounting material yield of your cutting liquid for optimal repeatability speed. Machine that enables you to prepare surfaces in the lab successively methods to quickly and accurately perform preparation... Save time in your cutting mounting systems require neither pressure nor external heat and are more friendly... Materials Engineer, mounting in metallography of Engineering in material Science nor external heat are... Are recommended for mounting specimens to transfer the structure of a metallographic sample for Optical step! The belt or rotary disc machine and cost savings for micro hardness testing metallographic analysis indicative the! A general rule, curing times can vary from 30-45 minutes for fast curing.... Mecatech 250 … it ’ s materialographic characteristics, including how to use the Vickers hardness test for quick testing. Metallographic equipment for sample preparation is to protect fragile or coated materials during preparation and controlled material on! Tester for laboratory environments a semi-automatic grinder/polisher or a vibratory polisher pressure to ambient... You will mounting in metallography of high quality, uniform size and shape, and silver.... Their handling and to improve hardness or conductivity hardness test for micro hardness testing cost-efficient way to polish very materials... Preferably with vacuum impregnation certain specimen holders for automatic preparation ) ; References in archive...
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