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metallographic preparation

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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 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 June 2022
DOI: 10.31399/asm.tb.tstap.t56040076
EISBN: 978-1-62708-428-4
... Abstract Molybdenum thermal spray coatings are used in aerospace and other industries for wear resistance applications. Metallographic sample preparation of molybdenum coatings presents unique challenges. The purpose of the investigation described in this article is to determine Accepted...
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 June 2022
Figure 18 Scratches in metallographically prepared surfaces. Staining can be also seen from improper drying procedures. More
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Published: 01 August 2018
Fig. 12.34 (a) In a steel part, punching was used to mark in relief BRASOKT 2006. The marking was completely removed by grinding. In (b) after metallographic preparation and etching with Fry’s etchant, the cold deformation associated with the marking is revealed. Courtesy of A. Martiny More
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Published: 01 August 2018
Fig. 9.12 Sample of an iron-based alloy containing C = 0.31% and Ni = 30.5% subjected to metallographic preparation while fully austenitic and transformed to martensite. (a) Optical microscopy showing the initially straight lines on the austenitic sample surface distorted by the transformation More
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Published: 01 August 1999
Fig. 9.8 (Part 2) (d) 1.35% C (1.35 wt%). Surface polished, then austenitized in vacuum, quenched to below M s , reheated to ~600 °C. Surface metallographically prepared before heat treatment; viewed in oblique illumination. 500×. (e) 0.2% C, Ni-Cr-Mo alloy (0.18C-0.20Si-3.2Ni-1.9Cr-0.4Mo More
Image
Published: 01 August 1999
at 150 °C. 2% nital. 1000×. (d) 1.35% C (1.35 wt%). Surface polished, then austenitized in vacuum, quenched to below M s , reheated to ~600 °C. Surface metallographically prepared before heat treatment; viewed in oblique illumination. 500×. (e) 0.2% C, Ni-Cr-Mo alloy (0.18C-0.20Si-3.2Ni-1.9Cr-0.4Mo More
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 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270087
EISBN: 978-1-62708-301-0
... of the fast-fracture region are shown in Fig. CH11.4 . Fig. CH11.2 SEM fractograph of the failed blade Fig. CH11.3 SEM fractograph of the failed blade, showing fatigue striations Fig. CH11.4 SEM fractograph of the fast-fracture region Metallographically prepared specimens...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230199
EISBN: 978-1-62708-298-3
... Abstract This chapter explains how to safely prepare beryllium alloy samples for metallographic analysis. It describes grinding, polishing, and etching procedures in detail. It also discusses the identification of major and minor constituents and the general appearance of beryllium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
... Abstract This chapter explains how to prepare metallographic samples for light microscopy and how to anticipate and avoid related problems. It describes standard practices and procedures for sectioning, mounting, grinding, and polishing and identifies common defects along with their causes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.9781627084284
EISBN: 978-1-62708-428-4
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 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 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270177
EISBN: 978-1-62708-301-0
... Energy-dispersive spectrum showing the presence of MnS inclusion Metallography A sample sectioned from the fractured gear, parallel to the plane of fracture, was metallographically prepared and examined. Elongated inclusions, dove gray in color, typical of MnS, and a few globular oxide-type...
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 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400149
EISBN: 978-1-62708-258-7
... metallographic laboratories. These laboratories are designed to include facilities for sample preparation and microscopes for observing and photographing microstructures. Chapter 5 introduced and described the use of the metallurgical microscope. The microscope is known as a “light” microscope, because...
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Published: 01 October 2011
Fig. 7.2 Jose Ramon Vilella (1897–1971), distinguished metallographer who understood the need to faithfully prepare representative surfaces in metallographic examinations. Source: Ref 7.1 More