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metallographic laboratory

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400087
EISBN: 978-1-62708-258-7
... Abstract This chapter discusses the important role of metallography and the metallographer in predicting and understanding the properties of metals and alloys. Examples are presented of a metallographer working as part of a team in a research laboratory of a large steel company...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400149
EISBN: 978-1-62708-258-7
... microscopes, x-ray diffractometers, microhardness testers, and hot microhardness testers. A list of other instruments that are usually located in a research laboratory or specialized testing laboratory is also provided. electron probe microanalyzers image analyzers metallographic laboratory...
Image
Published: 01 August 2005
Fig. 21 Arrangement of major components of portable metallographic laboratory for grinding and polishing. Equipment for examination and photography are also available. Image courtesy of Buehler Ltd. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400169
EISBN: 978-1-62708-258-7
... and in the interpretation of the microstructure. In some metallographic laboratories, the metallographer prepares a specimen for someone else to interpret, that is, a metallurgist or materials engineer. In some situations, the metallographer prepares the specimen, interprets the microstructure, and performs any...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040076
EISBN: 978-1-62708-428-4
... Practices for sample preparation to better understand the process related microstructures of thermal spray molybdenum powders. The committee followed a round robin approach to assess metallographic sample preparation by a variety of laboratories. The article summarizes the results of the committee’s work...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910475
EISBN: 978-1-62708-250-1
... in the chapter are: collection of background information and sampling; preliminary laboratory examination; detailed metallographic and fractographic examinations; chemical analysis of corrosion products and bulk materials; corrosion testing for quality control; mechanical testing for quality control...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040069
EISBN: 978-1-62708-428-4
... robin testing by several laboratories. abradable coatings bentonite metallographic analysis nickel-chromium-aluminum alloys round robin testing sample preparation wear Introduction and Background Abradable coatings (such as Ni-4Cr-4Al/bentonite) are used throughout jet engines...
Image
Published: 01 December 1984
Figure 4-35 Interior of metallographic hot cells. Note sample grinding device in the foreground, ultrasonic cleaner and vibratory polishers in the center, and a hardness tester in the rear. Transfer openings to the metallographs and electron microprobe are on the rear wall. (Courtesy of R. S More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
... the microstructure for a substantial distance from the cut, one should burn well away from the area of interest and do subsequent sectioning with standard machining techniques. Reasonably small-sized samples can be handled with equipment found in a typical metallographic laboratory, such as a shear, band saw...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400109
EISBN: 978-1-62708-258-7
... microscope features microstructure THE METALLOGRAPHER’S most important tool is the metallurgical microscope. Every metallographic laboratory has at least one metallurgical microscope for observing microstructures. This microscope is different from the conventional microscope, which uses transmitted...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220667
EISBN: 978-1-62708-259-4
... Abstract This chapter provides guidelines for conducting metallographic evaluations and offers suggestions on how to effectively report the results. It explains how the approach depends on the objective of the evaluation, which is usually to measure a structural feature, test a hypothesis...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720161
EISBN: 978-1-62708-305-8
... Cutting By far, the most widely used sectioning devices in metallographic laboratories are abrasive cut-off machines. All abrasive wheel sectioning should be done wet. An ample flow of water, with a water soluble oil additive for corrosion protection, should be directed into the cut. Wet cutting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230199
EISBN: 978-1-62708-298-3
... Grinding procedures used at various laboratories Procedure Remarks Metallographer 1. Mechanical grinding on 120-, 240-, and 400-grit polishing papers. Rotate 90° between papers. Lubricant not indicated To be followed by electrolytic polishing and etching Noland et al. [1948] 2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400297
EISBN: 978-1-62708-258-7
... address: ASTM (American Society of Testing Materials), 100 Barr Harbor Drive, West Conshohocken, PA, 19428-2959; Tel: 610/832-9555; E-mail: service@astm.org; Website: www.astm.org General E 7 Terminology Relating to Metallography E 807 Standard Practice for Metallographic Laboratory Evaluation E 44 Heat...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850267
EISBN: 978-1-62708-260-0
... for mounting the sample on clay. 4-3.7 Control of Microscope Variables A microscope or metallograph is a complex instrument that must be kept in fine tune if best results are to be obtained. The best instrument can be rendered ineffective if it is not properly adjusted. Each laboratory should have...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.9781627084284
EISBN: 978-1-62708-428-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130351
EISBN: 978-1-62708-284-6
... of 40 to 43 HRC. The hardness of the T-head was determined to be 48.8 HRC. This hardness value exceeded the requirement of 46 to 48 HRC. Metallographic sections were prepared through the strain bar and a typical T-head at the locations shown in Fig. 4 . The specimens were prepared using standard...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180151
EISBN: 978-1-62708-256-3
... and analysis fracture surfaces, secondary cracks, and other surface phenomena) Microscopic examination and analysis of fracture surfaces Selection, preparation, examination, and analysis of metallographic sections Determination of the actual stress state of the failed component Determination...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400215
EISBN: 978-1-62708-258-7
... crystals of picric acid should never be touched or handled by the metallographer). Caution should be taken when handling and storing picric acid. Some laboratories do not allow the use of picric acid for safety reasons. This is very unfortunate for the metallographers in those laboratories, because...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610549
EISBN: 978-1-62708-303-4
... the use of portable laboratories with metallographic equipment for grinding, mechanical polishing, and etching. Small specimens can be cut from a part on the site for preparation, examination, and photography immediately or upon return to a fully equipped laboratory. Photography is, of course, essential...