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Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0006848
EISBN: 978-1-62708-387-4
... Abstract Quantitative fractography (QF) is the examination and characterization of fracture surfaces of failed or broken-open components and specimens. This article provides examples of the application of QF to evaluate real-life fatigue failures and also a comprehensive guideline chart...
Book Chapter

Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0007033
EISBN: 978-1-62708-387-4
... Abstract The development of quantitative fractography (QF) parameters basically requires topological data of a fracture surface that can be derived from the stereological analysis of multiple projected scanning electron microscope (SEM) images; the profilometry-based techniques that measure...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0006877
EISBN: 978-1-62708-387-4
... Abstract This article discusses several examples of fatigue load histories that intentionally create artificial fracture-surface markings during testing such that they are measurable by post-test quantitative fractography (QF). It reviews a number of methods for providing fatigue fracture...
Book Chapter

By Arun M. Gokhale
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003536
EISBN: 978-1-62708-180-1
... Abstract The quantitative characterization of fracture surface geometry, that is, quantitative fractography, can provide useful information regarding the microstructural features and failure mechanisms that govern material fracture. This article is devoted to the fractographic techniques...
Series: ASM Handbook Archive
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003468
EISBN: 978-1-62708-195-5
... surfaces and their observation methods. crack initiation fatigue crack growth fatigue fracture fatigue life fatigue test fractography plane strain specimen preparation FATIGUE PROPERTIES of particle-reinforced metal-matrix composites (PR-MMCs) and the quantitative examination...
Book Chapter

By Ervin E. Underwood, Kingshuk Banerji
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001837
EISBN: 978-1-62708-181-8
... Abstract The principal objective of quantitative fractography is to express the characteristics of features in the fracture surface in quantitative terms, such as the true area, length, size, spacing, orientation, and location. This article provides a detailed account of the development of more...
Image
Published: 01 June 2024
Fig. 19 Quantitative-fractography-measured crack depth versus full-scale fatigue test (FSFT) fatigue crack growth (FCG) life for the excised stub flange fatigue crack, combined with the lead crack fatigue lifing framework (LCFLF) estimate of the stub FCG life to failure if the crack had More
Image
Published: 01 June 2024
Fig. 22 Schematic of progression-marking quantitative fractography (QF) measurements from a fatigue-nucleating discontinuity ( Ref 11 ) More
Book Chapter

Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0006872
EISBN: 978-1-62708-387-4
... fractography and quantitative fractography. electron fractography fracture appearance quantitative fractography FRACTOGRAPHY is the term coined by Carl A. Zapffe in 1944 following his discovery of a means for overcoming the difficulty of bringing the lens of a microscope sufficiently near...
Book Chapter

Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001830
EISBN: 978-1-62708-181-8
... dating back to the sixteenth century to the state-of-the-art work in electron fractography and quantitative fractography. It also describes the applications and limitations of scanning electron microscope and transmission electron microscope. electron fractography fractography microfractography...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001838
EISBN: 978-1-62708-181-8
... fractal dimensions that result from these analyses appear to possess some generality for natural irregular nonplanar surfaces and their profiles. fractal analysis fracture surface quantitative fractography surface roughness RESEARCH into the field of quantitative fractography has progressed...
Image
Published: 01 June 2024
Fig. 17 Optical fractograph of the excised full-scale fatigue test stub flange fatigue crack, showing the estimated full extent of the crack (curved red line) and the quantitative fractography (QF) measurement trajectory (dashed red line) More
Image
Published: 01 June 2024
quantitative-fractography-obtained crack-growth curves for other smaller cracks in the boom. More
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003058
EISBN: 978-1-62708-200-6
... crack fronts and inclusions, etc. A separate fractography terminology is provided in this article. ceramics crack propagation descriptive fractography failure analysis fractography techniques fractography terminology fracture markings fracture surface markings quantitative fracture surface...
Book Chapter

By Patricia L. Stumpff
Series: ASM Handbook Archive
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003460
EISBN: 978-1-62708-195-5
... and Quantitative Fractography of Metal-Matrix Composites” is devoted to fatigue testing and the fractography associated with metal-matrix composites. The ninth and final article, “Failure Analysis of Ceramic-Matrix Composites,” is devoted to the fractographic analysis of ceramic-matrix composites, including...
Book

Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.9781627083874
EISBN: 978-1-62708-387-4
Book Chapter

Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0005697
EISBN: 978-1-62708-181-8
... "Quantitative Fractography" in this Volume. Mg megagram min minimum; minute MJ megajoule mL milliliter mm millimeter mol% mole percent MPa megapascal mph miles per hour N newton N fatigue life (number of cycles); normal solution Nr number of cycles to failure NA numerical aperture NACE National Association...
Book

By ASM Handbook Committee
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.9781627081818
EISBN: 978-1-62708-181-8
Book Chapter

By Barbara L. Gabriel
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001835
EISBN: 978-1-62708-181-8
... and photogrammetric methods, is used for conducting spatial measurements on stereo pairs ( Ref 31 , 34 , 35 , 36 , 37 ). Detailed information on stereoscopic imaging and photogrammetric methods can be found in the article “Quantitative Fractography” in this Volume. In stereo photogrammetry, calibrated...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0006945
EISBN: 978-1-62708-387-4
... Presented here is a basic overview of technology-driven advances in imaging of primarily metallic fracture surfaces that have occurred since the last edition of Fractography , Volume 12 of Metals Handbook , 9th ed., in 1987 ( Ref 1 ). There have been both incremental and transformational improvements...