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metallographic specimen preparation

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400169
EISBN: 978-1-62708-258-7
... Abstract This chapter instructs the metallographer on the basic skills required to prepare a polished metallographic specimen. It is organized in a chronological sequence starting with the information-gathering process on the material being investigated, then moving on to sectioning, mounting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040030
EISBN: 978-1-62708-428-4
... Abstract This article presents best practices for the metallographic preparation of specimens produced via thermal spray coating methods. It outlines typical metallographic preparation process flow, highlighting important considerations for obtaining a clear and representative specimen suitable...
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
... Abstract This chapter describes the methods and equipment applicable to metallographic studies and discusses the preparation of specimens for examination by light optical microscopy. Five major operations for preparation of metallographic specimens are discussed: sectioning, mounting, grinding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400087
EISBN: 978-1-62708-258-7
... and a metallographer working alone at a small iron foundry. The three basic areas in all metallography laboratories are discussed: the specimen preparation area, the polishing/etching area, and the observation/micrography area. Important safety issues in a metallographic laboratory are also considered. heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
... and cures. It also provides recommendations for handling specific materials and addresses safety concerns. light microscopy metallographic sectioning specimen preparation 2-1 Introduction The preparation steps for light microscopy, often viewed as a tedious, frustrating process, are of great...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400149
EISBN: 978-1-62708-258-7
... that are not part of the microstructure. As is seen later in Chapter 7 , the specimen preparation for an automatic image analyzer must be closely controlled in order to prevent inaccurate measurements. Sample Requirements It must be pointed out that the metallographic specimens for an image analyzer must...
Image
Published: 01 March 2002
Fig. 6.14 A vacuum evaporator used for depositing carbon on the surface of a metallographic specimen as the first step in preparing surface replicas. Source: Denton Vacuum, Inc. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040069
EISBN: 978-1-62708-428-4
... Abstract Abradable coatings (such as Ni-4Cr-4Al/bentonite) are used throughout jet engines, primarily as sacrificial coatings into which moving components wear. This article presents the Accepted Practice for sample preparation of abradable coatings for metallographic analysis, based on round...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220069
EISBN: 978-1-62708-259-4
... the steps involved in replicating part surfaces. etchants etching metallographic replication microscopic examination sample preparation Several techniques are used to observe the structure of steels and cast irons in the microscopic scale. For many of these techniques, sampling and sample...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400215
EISBN: 978-1-62708-258-7
... to highlight certain features in microstructures. carbon steel cast iron coated steel etchant etching light illumination low-alloy steel metallurgical microscope microstructure stainless steel ONCE THE POLISHED metallographic specimen is properly prepared, the next stage is to reveal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230199
EISBN: 978-1-62708-298-3
... Specimen Extraction For preparation of metallographic specimens, beryllium is either sawed or cut on an abrasive wheel to a convenient size, which should not be more than 6.35 mm (0.25 in.) square. For best results in mounting and polishing, Bakelite mountings are preferred. 16.2 Grinding Procedures...
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...
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
... sophisticated electron metallographic tools are now available to an investigator, the light microscope remains the single most important device. While the transmission electron microscope (TEM) and the scanning electron microscope (SEM) overcome two of the most important limitations of the light microscope...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040055
EISBN: 978-1-62708-428-4
... practices, as well as from different polishing times, are presented. Additionally, the article discusses the factors in optical microscopy and scanning electron microscopy that affect microstructure interpretation. air plasma spraying artifacts metallographic preparation microstructure optical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900167
EISBN: 978-1-62708-350-8
... after microhardness testing and provides practices that contribute to the safe preparation of specimens. Examples of nitrided case microstructures, using optical light microscopy, are also presented. hardness testing microstructure nitrided case optical light microscopy sample preparation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400109
EISBN: 978-1-62708-258-7
... (the lens assembly close to the specimen) and eyepieces, and components of the illumination system are all explained. The last part of this chapter describes special procedures involved in using and calibrating the metallurgical microscope. metallograph metallurgical microscope micrography...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220667
EISBN: 978-1-62708-259-4
... that deserve attention in the performance of metallographic exams, regardless of the technique in question, are presented. Basic suggestions on how to report the results of these investigations are also given. The main objective of these suggestions is to make sure that once prepared, reports will be clear...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930023
EISBN: 978-1-62708-359-1
..., preheat Critical restraint, stress and strain Loading jig Costly specimen preparation Cranfield test Lamellar tearing Filler metal Number of passes to crack None Low cost Nick bend test Weld metal soundness Filler metal Go-no go None Low cost Source: Ref 9 Hot Cracking...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220039
EISBN: 978-1-62708-259-4
... and etching involves occupational and environmental risks. It is not the purpose of this text to discuss these risks, but the reader is cautioned not to start any metallographic preparation before completely familiarizing him- or herself with the risks, required safety equipment, proper protection measures...