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deformation heating

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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001302
EISBN: 978-1-62708-215-0
... and coalesced during service. Consideration of the manufacturing process suggested that the cracks were the result of overheating of the kingpin blanks prior to forging, which was exacerbated during forging by deformation heating in the highly-strained region. This view was supported by results of two types...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001533
EISBN: 978-1-62708-225-9
... Abstract An investigation of wear and failure of babbitt bushes was completed in this study. The results showed that wear at dry sliding of babbitt obtained by plasma spraying was less than that of babbitt in the as-cast state and after a deformation heat treatment. The failure of babbitt...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006835
EISBN: 978-1-62708-329-4
... rolled into the metal surface and become elongated into streaks during subsequent processing. Burning A commonly overlooked defect in forging of steel is burning. It is the result of severe overheating and may be found in areas of massive deformation, where the additional heat from deformation...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001811
EISBN: 978-1-62708-241-9
... Abstract A deformed steel tube was received for failure analysis after buckling during a heat-treat operation. The tube was subjected to various metallurgical tests as well as nondestructive testing to confirm the presence of residual stresses. The microstructure of the tube was found...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001268
EISBN: 978-1-62708-215-0
... plastically deformed while two of the deformed leafs did not meet minimal hardness or tensile requirements. Liquid penetrant testing revealed no cracks or other surface discontinuities on the leaf springs. Material sectioned from the soft spring leafs was heat-treated according to specifications...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... did not attain its specified shape in the free state following this operation. Another material deficiency that can lead to deformation failure is variability in response to heat treatment among parts in a given production lot. Certain alloys, particularly hardenable low-alloy steels and some...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... presetting; therefore, the spring did not attain its specified shape in the free state following this operation. Another material deficiency that can lead to deformation failure is variability in response to heat treatment among parts in a given production lot. Certain alloys, particularly hardenable low...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001190
EISBN: 978-1-62708-235-8
... cases however the cracks were detected after a certain period of operation. The intercrystalline course of the cracks indicated stress-cracking as it often appears in brass after heavier cold deformation. The splitting of the couplings could have been avoided by a tempering heat treatment...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... formed parts cracking cracks forging grain flow heat treatment hydrogen content imperfections ingot pipe laminations metalworking nonmetallic inclusions pits porosity scabs seams sheet metal forming unmelted electrodes workability WROUGHT FORMS are produced by a wide variety...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001139
EISBN: 978-1-62708-221-1
... the heat affected zone which one investigator used as evidence of lamellar tearing. Finally, Figs. 5 , 6 , 7 , 8 , show examples of deformation on the crane itself which may be taken as indications of misuse. Fig. 5 , shows the area where the lift cylinders for the boom are located. Deformation may...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001508
EISBN: 978-1-62708-236-5
... fractured with little or no deformation. The material used for the heat shields, annealed type 321 CRES sheet, should exhibit a great amount of deformation prior to failure. These fractures were also examined via SEM and were found to exhibit similar features as those found in the cracks adjacent...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001011
EISBN: 978-1-62708-229-7
... of failure involved overheating of the Cr-Mo outlet tubes, heavy oxidation, oxide cracking on thermal cycling, thermal fatigue cracking plus oxidation, creep-controlled crack growth, and rapid plastic deformation and rupture. This failure was indicative of excess temperature of the steam coming from the heat...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001363
EISBN: 978-1-62708-215-0
... Micrograph of a section of ball bearing. Severe deformation, smearing, and microstructural changes are evident. 16.75× Fig. 11 Micrograph of a section of bearing outer race core. The microstructure is typical of heat-treated 52100 steel. 276× Mechanical Properties Hardness...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0047991
EISBN: 978-1-62708-225-9
... races Radar equipment Rockwell hardness 4140 UNS G41400 Heat treating-related failures A large bearing from a radar antenna was replaced because of deformation, surface cracking, and spalling on the raceway of the outer ring. Figure 1(a) shows a sectional view of the bearing. Fig. 1...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001447
EISBN: 978-1-62708-235-8
... Abstract Hydrogen embrittlement is the brittleness affecting copper and copper alloys containing oxygen which develops during heat treatment at temperatures of about 400 deg C (752 deg F) and above in an atmosphere containing hydrogen. The phenomenon of hydrogen embrittlement of copper and its...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001754
EISBN: 978-1-62708-241-9
..., thorough questioning by the investigating activity. The combined analyses demonstrated that the bearing failed by a single event overload as evidenced by bulk deformation and traces of foreign material on the rolling elements. The anomalous transferred metal found on the rolling elements subsequently led...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0047447
EISBN: 978-1-62708-230-3
... showed the parts to be correctly heat treated. Cross sections of several of the parts showed pitting corrosion, and beneath the pits, stress-corrosion cracks in areas where the shafts had been bent during use. All the samples showed deep SCC in the areas where bending had occurred. In several cases...
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Published: 01 January 2002
Fig. 38 Pinion tooth profile. The pinion was plastically deformed by frictional heat and sliding pressures. The surface layer has locally rehardened, and galling is evident. 80× More
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Published: 01 January 2002
Fig. 31 AISI D2 powder metallurgy die component that melted and deformed because of flame impingement during heat treatment. (a) End view. 4.5×. (b) Microstructure in the affected region. Etched with Marble's reagent. 150× More
Image
Published: 01 June 2019
Fig. 4 Behavior of bolts with different aging treatments was studied under varying loads (see table). Permanent plastic deformation occurs at a load slightly above 11,000 lb regardless of heat treatment. Failure was in the threaded portion. More