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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001017
EISBN: 978-1-62708-219-8
...Abstract Abstract A 10-in. diam, spiral-welded AISI 1020 carbon steel pipe carrying water under pressure developed numerous leaks over a four mile section. The section was fabricated using submerged-arc welding from the outside surface. Each welded length of pipe had been subjected to a proof...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001820
EISBN: 978-1-62708-180-1
... of extraneous metals. (b) These arc a problem in gathering lines carrying sour gas (gas containing H 2 S). Controlling parameters and predicted failure modes for three assumed defect lengths Table 2 Controlling parameters and predicted failure modes for three assumed defect lengths Defect2 c...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001647
EISBN: 978-1-62708-235-8
... of porosity Arc length too long Random distribution of porosity Welding current too low Reduced weld penetration Random distribution of porosity Crater pipes—improper Elongated porosity arc extinguishing Irregular weld appearance Welding speed too high Random distribution of porosity...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1
... imperfections may be tolerable and how the other may be root-cause defects in service failures. The article explains the effects of joint design on weldment integrity. It outlines the origins of failure associated with the inherent discontinuity of welds and the imperfections that might be introduced from arc...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001024
EISBN: 978-1-62708-214-3
... reflected the computer results with surprising accuracy. Failure was caused by a fatigue crack that grew to critical length without detection. An improperly designed heating element that was prone to shorting to its case caused the electrical arc pitting, which acted as the stress-concentrating origin...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001149
EISBN: 978-1-62708-232-7
... at the expansion joints. When the critical crack size was reached, fast fracture occurred, ultimately producing crack lengths comparable to the duct diameter. The emission control system for the silicon metal and ferrosilicon furnaces at the Washington state plant was designed and built over a period of about...
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
... occurred in a region depleted of chromium and nickel. This condition coincides with a microstructural inhomogeneity consisting of large, soft ferrite grains. Its origin was probably contamination of the solidifying ingot during the consumable vacuum arc remelting operation. Bevel gears Forgings...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
... 1984 by the National Board of Boiler and Pressure Vessel Inspectors Initial part failure Causes Type of failures Numbers Low water cut-off Faulty design fabrication or installation Corrosion or erosion Operator error or poor maintenance Burner failure Pressure control failure Other...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001823
EISBN: 978-1-62708-241-9
... data . In: International Pipeline Conference ASME , vol. 1 , p. 216 ( 1996 ) 10.1115/IPC1996-1826 2. Peabody A.W. : Peabody’s Control of Pipeline Corrosion , 2nd edn. , pp. 252 – 254 . NACE International ( 2001 ) 3. Kaiser B.A. : Lightning protection for pipeline...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001813
EISBN: 978-1-62708-180-1
.... 21a ) was submitted for laboratory examination. No information was furnished concerning design, material, heat treatment, or length of service. The part shown in the “original design” portion of Fig. 22 was a valve-seat retainer spring from a fuel control on an aircraft engine. This spring...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0047512
EISBN: 978-1-62708-219-8
... of the incomplete welds. Continuation of the cracks was attributed to the brittle condition of the steel when cooled by the night air. A steel with a much lower ductile-to-brittle transition temperature is essential for this type of structure. Other necessary steps include better control of the girth-welding...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... in titanium fan disk resulted in fatigue crack initiation and catastrophic failure. Increased process controls on processing of titanium ingots Development of probabilistic design approach and analytical life assessment using dedicated computer programs for titanium disks Earthquakes in Kobe City, Japan...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001837
EISBN: 978-1-62708-241-9
...Abstract Abstract This case study describes the failure analysis of a steel nozzle in which cracking was observed after a circumferential welding process. The nozzle assembly was made from low-carbon CrMoV alloy steel that was subsequently single-pass butt welded using gas tungsten arc welding...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003566
EISBN: 978-1-62708-180-1
..., this line is parallel to C/L at a distance of D/2. (3) Draw arc AA′ with a radius of R. (4) Draw line EE′ parallel to line AC at a distance (r) equal to the corner radius to be used. (5) Draw arc BB′ parallel to arc AA′ at a distance equal to the corner radius. The radius of this arc (R′) is equal...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001534
EISBN: 978-1-62708-220-4
... growth during startup, culminating in catastrophic failure as soon as the crack exceeded critical length. Ammonia Condenser tubes Refrigerating machinery Weld defects Welded joints API 5L B ASTM A234 grade WPB UNS K03006 Joining-related failures Intergranular fracture Hydrogen damage...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001339
EISBN: 978-1-62708-215-0
... of the alloy piping is not known. Either the gas tungsten are or gas metal arc welding process was used to make the butt weld where the failure occurred. The through-wall fracture was located in a 200 mm (8 in.) diam butt weld between a straight section of piping and a 90° elbow. Power hacksaw cuts were...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
...., Gauss, Weibull, logit, arc sin p ) and the failure probability. Table 2 shows u -values for different failure probabilities for the most often applied Gauss log distribution. Safety span for different failure probabilities (Gauss log distribution) Table 2 Safety span for different...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... or subsurface imperfections and cracks, while methods such as radiography and ultrasound are capable of detecting imperfections within a part. Other methods are more suited for online monitoring, which is a quality-control function in production systems. Also, there are many NDE methods used for condition...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001536
EISBN: 978-1-62708-229-7
... in adapter tube assemblies in the control rod drive head of a pressurized water reactor, (3) thermal fatigue of a recirculation pump shaft in a boiling water reactor, and (4) failure of pump seal wear rings by nickel leaching in a boiling water reactor. Corrosion Decontamination Intergranular stress...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003544
EISBN: 978-1-62708-180-1
..., because plastic strain is a required condition for fatigue, strain-controlled testing offers advantages in the characterization of fatigue crack initiation (before subsequent crack growth and final failure). The S - N method is based on just one failure criterion: the total separation of the test coupon...