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microconstituents

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0045903
EISBN: 978-1-62708-223-5
... in any unusual microconstituents or contaminants at the origin. In this examples, EPMA was used to determine the composition of the fatigue fracture-origin site that was not a normal origin site based on stress analysis or stress concentrations. An unusually high concentration of inclusions...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001758
EISBN: 978-1-62708-241-9
... at carbides and other microconstituents, especially in single crystal castings that do not possess grain boundaries. gas turbine engine components creep deformation overheating nickel-base superalloy interdendritic stress-rupture fracture stress-rupture testing stress-rupture life Cast nickel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c0046956
EISBN: 978-1-62708-232-7
... an abnormally high copper content. Metallographic examination of a cross-sectional specimen, also from the failed area, revealed the presence of a microconstituent foreign to the alloy; this constituent, probably a nickel-copper intermetallic phase, was observed in the grain boundaries throughout the entire...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0060154
EISBN: 978-1-62708-234-1
... heated at temperatures between 1095 and 1315 °C (2000 and 2400 °F) The microconstituents present in the grains would have been dissolved at grossly elevated temperatures and would have been of much finer size if they had subsequently precipitated out of solid solution during the final 16 h of firing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0089572
EISBN: 978-1-62708-218-1
... below the fracture surfaces of both beams. Internal cracking and cold shuts, such as those shown in Fig. 1(c) , were evident adjacent to the fracture surfaces. The microstructure of the beams consisted of transformation products and ferrite ( Fig. 1d ). The microconstituents exhibited some evidence...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001821
EISBN: 978-1-62708-241-9
... to above approximately 750 °C and transforms to austenite. The subsequent two-phase swell then fills the tank and cools the steel rapidly enough to transform the austenite to relatively brittle microconstituents, such as martensite, bainite, or fine pearlite. These microconstituents exhibit reduced...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001611
EISBN: 978-1-62708-219-8
.... This microconstituent can only be formed when the structure is subject to very high cooling rates to temperatures below which martensite starts to form from austenite (M S ). Bainite formation in this alloy also requires very rapid cooling but does not require cooling to below the MS temperature. Based...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001648
EISBN: 978-1-62708-234-1
... was high in sulfates. The nonmetallic deposit found where corrosive activity was well developed is characteristic of attack by sulfate-reducing microbes. 6 The indication, therefore, is that the organism involved is of a variety that was preferentially attacking the MnS microconstituent and metabolizing...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001803
EISBN: 978-1-62708-241-9
... that the implant was broken at the stem. Segregation, inclusions, and microconstituents are aligned and elongated in directions determined by the metal flow, resulting in mechanical fibering. Centerline segregation in the ingot caused center cracks in forging operations, and this acted as a stress concentrator...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006826
EISBN: 978-1-62708-329-4
... Preferential dissolution of microconstituents Contamination Embrittlement by the chemical absorption of elements such as hydrogen and chlorine Pits or selective etch Corrosion Stress corrosion Thermal Heat-affected zone Recast or redeposited material Resolidified material Splattered...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... is dispersed and heated to plasma temperatures. The metal atoms, excited by the heat, emit light waves that have known correspondences to particular elements. A drawback of all wet methods is that if there are microconstituents that are not easily soluble in the commonly available acids, erroneous results...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... Designed for thin films/coatings and microconstituents Dynamic rebound hardness testing Scleroscope hardness Hardness Requires a flat surface Component must be of sufficient thickness and mass Leeb (Equotip) hardness Hardness Requires a flat surface Component must be of sufficient...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
... information can be obtained by chemical analysis in the SEM and by microstructural examination. Use of the SEM for microstructural examination in addition to optical light examination may be appropriate depending on the scale of microconstituents present. Intergranular Fatigue Most fatigue...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... and by microstructural examination. Use of the SEM for microstructural examination in addition to optical light examination may be appropriate, depending on the scale of microconstituents present. Intergranular Fatigue Most fatigue and corrosion fatigue cracks are transgranular, although IG fatigue...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1