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metallographic specimens

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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...
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Published: 01 March 2002
Fig. 5.57 A device used to level metallographic specimens on clay for the upright metallurgical microscope More
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Published: 01 December 2003
Fig. 7 Fine grinder for wet or dry grinding of metallographic specimens More
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Published: 01 December 2003
Fig. 8 Coarse grinder for wet or dry grinding of metallographic specimens More
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Published: 01 September 2008
Fig. 7 Typical metallographic specimen. This specimen was used to examine microstructures in a failed weldment. More
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Published: 01 September 2008
Fig. 28 Metallographic specimen of the pinion showing inadequate case at the root of the tooth. Etched in 0.5% nital More
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Published: 01 July 2009
Fig. 5.25 Comparison of metallographic sections from specimens of type 316 stainless steel fatigued to failure in CP tests with varying exposure times. (a) High creep-rate test at 815 °C (1500 °F). (b) Low creep-rate test at 815 °C. (c) High creep-rate test at 705 °C (1300 °F). (d) Low creep More
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...
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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 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400149
EISBN: 978-1-62708-258-7
... it employs light as the source of illumination of the specimen. These microscopes are commonly called “optical” microscopes, but in this book the authors identify the microscope by the type of illumination used. The first stage in any metallographic analysis involves the observation of the microstructure...
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Published: 01 July 2009
Fig. 5.28 Metallographs of specimens creep fatigued to failure in CP tests with varying exposure times. AISI type 316 stainless steel at 816 °C (1500 °F), Δε in 2%. (a) High creep rate. (b) Low creep rate. Source: Ref 5.23 More
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 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130043
EISBN: 978-1-62708-284-6
... of specimens, mechanical testing, macroexamination, microexamination, metallographic examination, determination of the fracture mechanism, chemical analysis, exemplar testing, and analysis and writing the report. The chapter ends with a discussion on various processes involved in the determination...
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 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 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 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...
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 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 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410197
EISBN: 978-1-62708-265-5
... curves. The IT diagrams have been produced by metallographic examination of series of specimens held for various times at various temperatures between Ae 3 or A cm and M s . More than a hundred specimens are often required to determine a complete IT diagram for a given steel ( Ref 10.2...