1-20 of 356 Search Results for

case carbon content

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 Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0047187
EISBN: 978-1-62708-225-9
...; the microstructure at the surface consisted of coarse acicular martensite with retained austenite. Also, a coarse network of precipitated carbide particles showed that the carburization of the case had appreciably exceeded the most favorable carbon content. This evidence supported the following conclusions: 1) High...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048253
EISBN: 978-1-62708-234-1
.... It was found that gear 1 had a lower hardness than specified while the case hardness of gear 2 was found to be within limits. Both the pitting and the wear pattern were revealed to be more severe on gear 1 than on gear 2. Surface-contact fatigue (pitting) of gear 1 (cause of lower carbon content...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046044
EISBN: 978-1-62708-235-8
... in the casing in both high-carbon and low-carbon D-6ac steels. The greater probability for delayed quench cracking in higher carbon material, demonstrated in the static-bend tests, correlated with observations of cracking in the three components in the failed case that had the highest carbon contents...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001184
EISBN: 978-1-62708-235-8
... magnification it could be seen that the deviating etch behavior was caused by carbon-deficient martensite contents ( Fig. 6 ). Therefore this inclusion too was probably more alloy-deficient than the austenitic steel, similar to the ones described above. All three cases therefore were casting defects of the type...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0047100
EISBN: 978-1-62708-233-4
... steel with a carbon content of 0.38 to 0.53%, a hardness of 35 to 40 HRC for the shaft, and a hardness of 50 to 55 HRC for the notch (which was case hardened). Analysis (visual inspection, chemical analysis, hardness testing, and magnetic particle inspection) supported the conclusions that all...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001171
EISBN: 978-1-62708-219-8
... the precipitation (including reduction of carbon content, appropriate heat treatment, cold work of steel, reduction of austenitic grain size and stabilizing elements) were described. The presence of microcracks due to highly localized heat concentrations with consequent thermal expansion and considerable shrinkages...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006816
EISBN: 978-1-62708-329-4
... cracking Transformation-induced stresses Transformation from austenite to martensite causes volume change. Increases in volume increase tendency toward distortion and cracking Controlled only by controlling carbon content, where: Δ V V × 100 = 1.68 ( 100 − V c...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0089646
EISBN: 978-1-62708-235-8
... a higher-than-normal carbon content and/or carbon equivalent. Larger and more numerous cope side graphite nodules broke open, causing ferrite caps or burrs. They then became the mechanism of failure by breaking down the oil film and eroding the beating material. A byproduct was heat, which assisted...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001263
EISBN: 978-1-62708-224-2
... = 0.14%; Mn = 0.60%; Cr = 0.17%; Ni = 0.10%; P = 0.056%; S = 0.040%; N total = 96 ppm; N mobile = 60 ppm. Fig. 1 Fracture surface on the eyebolt. 2 × According to this, the eyebolt was not manufactured from the prescribed quality St 37-2N but from steel with a higher carbon content...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001073
EISBN: 978-1-62708-214-3
..., and viewed at 100×. The specimen from the original sprocket ( Fig. 2 ) exhibited a pearlitic microstructure (approximately 60% pearlite), indicating a carbon content of 0.48%. The specimen from the replacement sprocket ( Fig. 3 ) had much less pearlite (estimated at 20%) in a ferrite matrix, indicating...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001214
EISBN: 978-1-62708-235-8
... RC is necessary at a depth of 1.5 mm — calling for a carbon content of 0.4 to 0.5 % — only a narrow carbon-deficient core would remain. Therefore the mistake occurred already in the planning stage. To prevent damage, it would have been necessary to have a lower case depth, carburize less...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001595
EISBN: 978-1-62708-235-8
.... Carbon has a profound effect on both the martensite hardness and the steel hardenability. The mathematical estimation for steel surface hardness is based upon carbon content alone. The predominant additional elements of interest in hardenability calculations are manganese, silicon, nickel, chromium...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001395
EISBN: 978-1-62708-220-4
... in the carbon content of the shell and head materials (0.05/0.07) was not thought sufficient to account for the absence of attack in the one case and a severe attack in the other. Further investigation revealed that two nozzles were welded into the dished head at the backing ring end and there was no sign...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001409
EISBN: 978-1-62708-229-7
... Abstract Dezincification is a particular form of corrosive attack which may occur in a variety of environments and to which some brasses are susceptible. It is favored by waters having a high oxygen, carbon dioxide, or chloride content, and is accelerated by elevated temperatures and low water...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001270
EISBN: 978-1-62708-215-0
... Abstract An investigation was conducted to determine the factors responsible for the occasional formation of cracks on the parting lines of medium plain carbon and low-alloy medium-carbon steel forgings. The cracks were present on as-forged parts and grew during heat treatment. Examination...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003510
EISBN: 978-1-62708-180-1
... with increasing carbon content ( Ref 1 ). It has been reported that, typically, when a carbide-ferrite mixture is converted to martensite, the resulting expansion due to increasing carbon content is approximately 0.002 in./in. at 0.25% C and 0.007 in./in. at 1.2% C ( Ref 1 ). The fractional increase in size when...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001112
EISBN: 978-1-62708-214-3
... on the I-beam were chemically analyzed. Carbon content varied from 0.50 to 0.62%, compared with the maximum permissible level of 0.23% of the IS-226 specification. The sulfur content was low, about 0.025%, compared with the maximum permissible value of 0.055%. However, most of the sulfur was segregated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001223
EISBN: 978-1-62708-233-4
.... If such steels are heated to temperatures between 425 and 870° C 1 the carbon comes out of supersaturated solution, particularly between 600 and 700° C, and forms carbides with a high chromium content which precipitate preferentially at grain boundaries. The matrix in the vicinity of the grain boundaries can...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001233
EISBN: 978-1-62708-232-7
..., on the air side, all the pipes were smooth. Fig. 1 View of recuperator pipes from Groups 1, 2 and 3 (top to bottom). 1 2 × Chemical analysis of the pipes yielded the data shown in Table 1 . In the case of the pipes in Groups 1 and 2 the carbon content is much higher than specified...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001910
EISBN: 978-1-62708-217-4
... not in the nitrided condition as was required. This resulted in lower wear and fatigue resistance. These components also had a silicon content nearly double of that specified. The high silicon content lowered the notch tensile strength and toughness of the components. Breech bolts Weapons Military...