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acceptance limits

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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001070
EISBN: 978-1-62708-214-3
... the corrosion to an acceptable limit. Chemical processing equipment Sulfuric acid, environment UNS S31603 UNS N08020 316L 20Cb Uniform corrosion Background Neutralization tanks made of type 316L (UNS S31603) stainless steel became severely corroded in service, even though field corrosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046015
EISBN: 978-1-62708-235-8
... city. The fracture surfaces were examined visually and by optical (light) stereomicroscopy. Material testing showed a sample to be within the specified material limits for aluminum alloy 6061. Microscopic examination showed no significant differences in microstructure or grain size among the four T...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001137
EISBN: 978-1-62708-228-0
... yielded realistic critical flaw sizes (in the range 51 to 150 mm). These sizes were consistent with the limited fracture surface observations and such flaws could well have been present in the vessel dome prior to catastrophic failure. For similar pressure vessels, an inspection program based on a leak...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001596
EISBN: 978-1-62708-225-9
... and axial deflection, greatly increasing the torsional stresses on the spring. To understand the fatigue limits under these test conditions, a bench test was used to establish the fatigue strength of the springs. The bench tests showed that the failed springs had an unacceptable surface texture that reduced...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001847
EISBN: 978-1-62708-241-9
... microstructure for the steel in this application. In addition, the root fillet radius between the cylinder and the plate is 1.0 mm (shown in Fig. 9a ), barely attaining to the acceptable limit value ( R ≥ 1.0 mm). Fig. 8 Axial sectional microstructure of cylinder portion: ( a ) general view; ( b ) un...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001818
EISBN: 978-1-62708-241-9
... existed for temperature measurement Overview of Heater Treater Heater Treater ( Fig. 1 ) is a vessel used to treat oil–water emulsions to reduce the water content in oil to acceptable limits for further refining. Heater Treater uses several mechanisms including heat, gravity segregation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046422
EISBN: 978-1-62708-234-1
... the temperature rise of the water within acceptable limits. Fig. 1 Vanes of a dynamometer stator damaged by liquid erosion. This dynamometer, designed to absorb up to 51 MW (69,000 hp) at 3670 rpm, constituted an extrapolation of previous design practices and experience. It was subject to severe...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001761
EISBN: 978-1-62708-241-9
... crankshafts were below the acceptable limits set by the manufacturer. Additionally, the nitrogen content in the hardened layer of the machined crankshaft was very low and the journals were machined in excess of technical limitation. It is well known that surface hardening by nitriding can raise...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003502
EISBN: 978-1-62708-180-1
... of these definitions, the task of the design engineer is to design a safe system by identifying the hazards and controlling the associated risks to within acceptable limits. The criteria for what is acceptable are set, in part, by safety standards. Although compliance with applicable safety standards is generally...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001535
EISBN: 978-1-62708-232-7
...%) in the segregated carbides, as compared to substantially lower W contents (11.15 wt%) in the isolated MC-type, V-rich carbides, corroborates the segregation promoting tendency of W. The retained austenite content (6.29%) in the failed roll is low and, being within acceptable limits for forged and hardened steel...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
... hold that any risk that can be eliminated by reasonable accident-prevention methods is unreasonable and unacceptable. A high risk of injury could be considered reasonable and acceptable if the injury is minimal and the risk is recognized by the individual concerned. As might be expected...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001661
EISBN: 978-1-62708-229-7
... on the results of the evaluation program. This procedure is applicable to the magnetic particle examination of ferromagnetic components using prods and dry powder with direct current (DC) according to the dry continuous inspection method. This procedure is limited to the detection of discontinuities open...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003515
EISBN: 978-1-62708-180-1
... of false alarm (PFA). The article describes the damage tolerance approach to life management of cyclic-limited engine components and lists the commonly used nondestructive evaluation methods. It concludes with an illustration on the role of NDE, as quantified by POD, in fully probabilistic life management...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0046022
EISBN: 978-1-62708-217-4
... acceptable. Ductility was acceptable so rosettes found in the microstructure are believed to have been nondamaging. Had they contributed to the failure, the ductility would have been very low. The recommendations included inspection for cracks and revising the manufacturing process to include a fluorescent...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0005695
EISBN: 978-1-62708-180-1
.... Several organizations have compiled glossaries of terms used in failure analysis, including ASTM, SAE, and ASM International. In some cases (e.g., ASTM), accepted definitions of terms is by consensus approval of a committee. In other instances (e.g., ASM), there is no formal approval procedure nor...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001842
EISBN: 978-1-62708-241-9
... concentration carbon steel heat affected zone metallurgical notch ring test cyclic bending stress fatigue limit ASTM A106 (seamless carbon steel pipe) UNS K02501 Introduction The fractured part of concern is a long, slender roll that was located in the dryer section of a paper manufacturing...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006798
EISBN: 978-1-62708-295-2
... in failure analysis, including ASTM International, SAE International, and ASM International. In some cases (e.g., ASTM International), accepted definitions of terms is by consensus approval of a committee. In other instances (e.g., ASM International), there is no formal approval procedure nor...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001766
EISBN: 978-1-62708-241-9
... individuals representing the construction firm, the power company, and to a limited extent, government investigators, which included a limited metallurgical failure analysis. These investigations uniformly confirmed several key facts with respect to the incident. The failed anchor had been installed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001732
EISBN: 978-1-62708-218-1
... of the new sample, Fig. 6 , showed a B10 life of 62,000 cycles, which is within the acceptable range. This improvement in B10 life over the first samples indicated that the processing change was effective. However, because these data represent a limited sample test, how confident were we that a difference...
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
... material, and the idealized material assumed in limit analysis. All have the same yield strength. Fig. 2 Buckled flange (lower arrow) of an extruded aluminum section deliberately loaded with a lateral force (upper arrow). Source: Ref 3 . Fig. 3 Aluminum alloy 6063-T6 extension-ladder...