1-17 of 17 Search Results for

microfractography

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... fracture surfaces. It discusses damage characterization of metals, covering various factors that influence the damage, namely stress, aggressive environment, temperature, and discontinuities. damage characterization failure analysis fracture surfaces metals microfractography optical...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001193
EISBN: 978-1-62708-229-7
... partially as fatigue cracks produced by vibration in the operation of the turbine as a result of steplike growing of microcracks could not be deduced from the fracture surfaces. Microfractography showed that the cracks developed in stages. Brazing Residual stress Steam turbines X20Cr 13 Joining...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003520
EISBN: 978-1-62708-180-1
... Abstract This article outlines the basic steps to be followed and the range of techniques available for failure analysis, namely, background data assembling, visual examination, microfractography, chemical analysis, metallographic examination, electron microscopy, electron microprobe analysis...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001838
EISBN: 978-1-62708-241-9
.... pipe hot cracking grain boundary segregation stainless steel tear ridges melt bridging microfractography induction heating frequency X6CrNiMoTi17-12-2 (titanium-stabilized austenitic stainless steel) UNS S31635 References 1. Cross C.E. : Private Communication...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
.... ceramic materials corrosion damage macroscopic examination metallic components metallographic specimens microchemical analysis microfractography microstructure polymers visual examination wear EXAMINATION of a damaged component involves a chain of activities that, first and foremost...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001845
EISBN: 978-1-62708-241-9
... investigation from ( a ) splint A and ( b ) splint B In this study, cracks were detected in two steady clamps applied in an electrified railway. The cracks were all observed in splints. Microfractography revealed the brittle nature of the fracture. It was evident from SEM observation...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001077
EISBN: 978-1-62708-214-3
... examination of the failed gear and other transmission components showed that the contribution to failure from external sources was minimal. There was little evidence to suggest that any abnormal loading of the gear had taken place. Both macrofractography and microfractography revealed that cracking initiated...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001849
EISBN: 978-1-62708-241-9
... failure analysis. Visual inspection, macro-and microfractography along with optical microscopy and microhardness testing were used to determine the cause of the observed spalling. Cleaning dust, metal fines, and oil residues from the samples was performed in an ultrasonic acetone bath for 10 min...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001144
EISBN: 978-1-62708-217-4
... , ASTM STP 436, 151 – 178 ( 1968 ). 10.21236/AD0826125 3. Abelkis P. R. , “ Use of Microfractography in the Study of Fatigue Crack Propagation under Spectrum Loading ,” Fractography in Failure Analysis , ASTM STP 645, 213-3Z ( 1978 ). 10.1520/STP38093S 4. McSwain R. H...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001544
EISBN: 978-1-62708-219-8
... was not determined, but it is apparently a tougher material than the base metal. Metallography and electron microfractography completed this portion of the investigation. Figure 5 provides a view of a series of microcracks and inclusions, a typical condition found in locations well away from the...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003518
EISBN: 978-1-62708-180-1
..., porosity, and unsoundness of various types may be able to be detected without cutting the part. Microfractrography and other techniques with SEM, including localized chemical analysis Microfractography may simply be used to add weight to a macro scale determination of ductile or brittle behavior...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006754
EISBN: 978-1-62708-295-2
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001026
EISBN: 978-1-62708-214-3
... nearly microscopic cleavage facets. Fig. 3 SEM macrograph of area of flakes 2 (upper) and 3 (lower), showing cleavage step patterns. The major portions of the fracture surfaces of flakes 1, 2, and 3, as well as the closed crack, consisted of the microfractography shown in Fig. 4(a) . Small...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001148
EISBN: 978-1-62708-228-0
... pipeline radius (15″ or 38.1cm). Substituting these values into Eq. 1 gives a value of 22Ksi (152MPa) for the principal normal stress. The critical flaw size at the time of fracture as determined by macrofractography and confirmed by microfractography has previously been noted to be 0.175″ deep by...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... fractographs were obtained with the TEM. These replicas are reversed images of the fracture surface. The differences in appearance between fractographs obtained from replicas and by direct observation can also be striking. Because of the early use of the TEM in microfractography, a substantial amount of...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... , 1969 , p 241 – 268 Microfractography is a relatively new field; its roots can be traced to the light optical fractographs published by Zapffe and coworkers ( Ref 4 ) beginning in the early 1940s, although a few studies of historical value predated their efforts. Zapffe's work, however, was...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... analysis investigation can be found in the articles “ Examination of Damage and Material Evaluation ,” “ Nondestructive Evaluation Applications for Failure Analysis ,” “ Bulk and Microscale Composition Analysis ,” “ Microfractography and Metallography for Failure Analysis ,” and “ Mechanical Testing in...