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metallographic sectioning

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2016
DOI: 10.31399/asm.tb.ascaam.t59190147
EISBN: 978-1-62708-296-9
... in the multicomponent Al alloys . J. Alloys and Compd. V 604 2014 , p. 245 - 252 10.1016/j.jallcom.2014.03.119 MICROSCOPIC OBSERVATION of metallographic cross sections allows for recognition of microstructural constituents of the alloy and phase composition of the interdendritic eutectics ( Fig. 4.1...
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 metallographic sections taken from the roll, high-temperature oxides were found on the crack faces, strongly suggesting forging laps. Processing can have a large influence on properties and the resulting residual stresses. Typically, this is related to wrong procedures or improperly specified procedures...
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 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...
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 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
... in construction. It then describes the various causes of failure in boiler tubes, headers, and steam pipes, explaining how and why they occur, how they are diagnosed, and how to mitigate their effects. The final and by far largest section in the chapter is a tutorial on damage and life assessment techniques...
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/or cleaning of critical specimens Macroscopic examination 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090419
EISBN: 978-1-62708-266-2
... be present that would render an alloy particularly susceptible to SCC. In stainless steel, such impurities include arsenic and antimony (tramp elements for which chemical analysis is usually not conducted). Fig. 18.7 Metallographic section through a SCC fractured aluminum bolthead cap showing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130351
EISBN: 978-1-62708-284-6
... 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 metallographic techniques. Figure 8 shows the microstructures of the strain bar and a typical T-head. Fig. 8 Micrographs documenting the microstructure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610549
EISBN: 978-1-62708-303-4
... sections Examination and analysis of metallographic specimens Determination of failure mechanism Chemical analysis (bulk, local, surface corrosion products, deposits or coatings, and microprobe analysis) Analysis by fracture mechanics Testing under simulated service conditions (special tests...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220025
EISBN: 978-1-62708-259-4
... metallographic analysis, one always should keep these transformations in mind. Fig. 3.5 When three-dimensional bodies (top) are sectioned, two-dimensional shapes result (bottom). These two-dimensional shapes supply incomplete information about the geometrical features of the sectioned bodies. Two...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220069
EISBN: 978-1-62708-259-4
... optical microscopes: (a) oblique or inclined illumination; (b) normal illumination or illumination parallel to the optical axis—the most common method; (c) dark field illumination. On the other hand, depth of field (see the section “ Depth of Field,” in Chapter 4, “Metallographic Technique...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420087
EISBN: 978-1-62708-310-2
..., belong to this category. Fig. 5.14 Irregular “Chinese script” eutectic consisting of faceted Mg 2 Sn phase (dark) in a magnesium matrix. Etched with glycol. Original magnification: 250×. Source: Ref 5.6 Although the examination of metallographic sections of irregular eutectics seems...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220583
EISBN: 978-1-62708-259-4
... of the metallographic section, different morphological aspects of the austenite (already transformed to pearlite) distribution in the cementite matrix can be observed. (Compare with the schematic presentation of Fig. 17.11 .) While the density of the solid phases of iron, cementite, and even most complex...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130503
EISBN: 978-1-62708-284-6
... (in accordance with AWS D1.1 Structural Welding Code) developed within the weld metal but was not readily visible on the surface. Metallographic sectioning of the weld profile showed that the crack initiated at the toe of the weld and proceeded in between the weld filler metal and HAZ. There was no evidence...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400087
EISBN: 978-1-62708-258-7
... in its usefulness in the prediction of properties. In fact, as seen subsequently, the chemical information can sometimes lead to the wrong conclusions about the steel. The metallographer, on the other hand, after sectioning, polishing, etching, and examining samples of the same three steels under...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630001
EISBN: 978-1-62708-270-9
..., and other surface phenomena) Microscopic examination and analysis using various light microscopy and electron microscopy techniques Selection and preparation of metallographic sections Examination and analysis of metallographic specimens Determination of failure mechanism Chemical analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910475
EISBN: 978-1-62708-250-1
... specimen. However, before final conclusions are reached, supplementary data confirming the original opinion, if available, should be sought. Total dependence on the conclusions that can be drawn from a single specimen, such as a metallographic section, may be readily challenged unless a history of similar...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400109
EISBN: 978-1-62708-258-7
... light for transparent material, for example, stained biological specimens. Metallographic specimens are opaque to light, and therefore, a metallurgical microscope needs a source of reflected light. This source of light is discussed in the following sections. Both kinds of microscopes are commonly called...