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stress-corrosion testing

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001547
EISBN: 978-1-62708-225-9
... concentration depended on end hook bend sharpness. Also, interference fits are to be avoided in the end hooks of small springs. Additionally, a need for careful consideration of the stress-corrosion properties of candidate materials for spring applications has been demonstrated by stress-corrosion test results...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048814
EISBN: 978-1-62708-229-7
... by series of controlled crack-propagation-rate stress-corrosion tests that A302, grade B, steel was susceptible to transgranular stress-corrosion attack in constant extension rate testing with as low as 1 ppm chloride present. It was recommended to maintain the coolant environment low in oxygen and chloride...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091727
EISBN: 978-1-62708-217-4
... to the welds ( Fig. 1 ). The test was stopped. This acceptance test had been run 38 times on similar pressure vessels without problems. Failure analysis could not reveal the cause of the cracking. The fractures had branching cracks characteristic of stress corrosion, yet fracture faces exhibited a somewhat...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001377
EISBN: 978-1-62708-215-0
... failures; it was necessary to have water with dissolved H 2 S for failures to occur. The visual appearance of the H 2 S fractures was quite similar to service failures ( Fig. 12 ). Stress-corrosion tests: effect of bolt tension and vendor comparison Table 3 Stress-corrosion tests: effect of bolt...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048607
EISBN: 978-1-62708-225-9
... of the test and appearance of the fracture surfaces are presented in Table 1 . This test demonstrated the damaging effects of the metallic copper antiseizure compound to high-hardness 12% Cr steels in the presence of a corrosive medium. Results of stress-corrosion tests of 12% Cr steel bolts in a 3.5% NaCl...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0091726
EISBN: 978-1-62708-217-4
... expulsion bladder. Investigation (visual inspection, pressure testing of 10 similar vessels, and chemical testing of the N2O4) supported the conclusion that the failure was due to stress corrosion from the N2O4, and specifically from a specification change in the military specification MIL-P-26539...
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Published: 01 June 2019
Fig. 15 Stress-corrosion fracture in a Cu-30Zn brass tested in water containing sulfur dioxide showing crack-arrest markings due to the discontinuous nature of crack propagation 10 More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001820
EISBN: 978-1-62708-241-9
... of iron sulfide films on the metal surface [ 15 ] which are porous, non-protective, and this is the reason why a passive region is not found on the anodic polarization curves. Test time (h) for fracture in stress corrosion tests Table 7 Test time (h) for fracture in stress corrosion tests...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091528
EISBN: 978-1-62708-229-7
... as conforming to ASME SA-376, grade TP304. All available data indicated that the as-supplied pipe had been of acceptable quality. Several types of stress-corrosion tests were conducted. In one group of tests, samples of 150 mm (6 in.) type 304 stainless steel pipe were welded together using type 308...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001560
EISBN: 978-1-62708-217-4
... may have occurred. A study was made for stress-corrosion cracking susceptibility of 4340 steel in a paste made of the residues collected from used breech chambers. The constant extension rate test (CERT) technique was employed and SCC susceptibility was demonstrated. The residues, which contained both...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... microscopic examination precipitation-hardening stainless steel sampling simulated-service tests stress concentration stress-corrosion cracking susceptibility titanium alloys welding STRESS-CORROSION CRACKING (SCC) is a failure process that occurs because of the simultaneous presence of tensile...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001789
EISBN: 978-1-62708-241-9
... component, and Ni-Al bronze, which has a history of success in naval applications. Material samples were examined using chemical analysis, SEM imaging, and corrosion testing. Investigators also analyzed precracked tension specimens, exposing them to different conditions to quantify stress intensity...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001806
EISBN: 978-1-62708-241-9
...-corrosion cracking. Two common stress-corrosion cracking tests for copper materials were conducted on new connectors from the same manufacturing lot, confirming the initial determination of the fracture mode. Additional testing as was done in the investigation is often helpful when analyzing corrosion...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... tested to destruction. The results of the test and appearance of the fracture surfaces are presented in Table 2 . This test demonstrated the damaging effects of the metallic copper antiseizure compound to high-hardness 12% Cr steels in the presence of a corrosive medium. Results of stress-corrosion...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
... of a corrosive medium. Results of stress-corrosion tests of 12% Cr steel bolts in a 3.5% NaCl solution to determine effect of antiseizure coating Table 2 Results of stress-corrosion tests of 12% Cr steel bolts in a 3.5% NaCl solution to determine effect of antiseizure coating Bolt Hardness, HRC...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001717
EISBN: 978-1-62708-217-4
... lubricant could reduce wear in these regions. Stress Corrosion Cracking and Corrosion Fatigue: A stress analysis or instrumented field test could be performed on the part to determine the magnitude of loading during worst case scenarios (hard landing, etc.). If loading is well below the threshold...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001145
EISBN: 978-1-62708-217-4
... similar to fractures produced in stress corrosion tests of 4340 steel ( 3 ), providing evidence that this is the failure mode for dome rupture. Fig. 15 Partial Through-Wall cracks Found in a Chamber Which Failed in a Hydraulic Test. Fig. 16 Small Fracture Along an Exhaust Port Weld...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001022
EISBN: 978-1-62708-214-3
... and adjoining wall between the steel sleeve and the steel diaphragm washer. Metallographic analysis and accelerated corrosion tests showed that the cracks had originated as stress-corrosion failures. Forgings, corrosion Landing gear, corrosion 2014 UNS A92014 Intergranular corrosion Stress-corrosion...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001342
EISBN: 978-1-62708-215-0
... the inner liner initiated on the outer surface of the liner and propagated inward, whereas cracks in the bellows originated on the inner surface and propagated outward. Stress-corrosion cracking of the assembly was caused by chloride contaminants trapped inside the bellows following hydrostatic testing...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001054
EISBN: 978-1-62708-214-3
...-state bonding process. Circumstances Leading to Failure Two of the parts that failed were under a low assembly load for several years in a humid climate. One had been corrosion tested (specifics unknown) and subsequently ruptured in a tensile test at low stress. Two of the failed parts had...