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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001142
EISBN: 978-1-62708-228-0
... Abstract Several newly developed liquid propane gas (LPG) cylinders made from Fe-0.13C-0.42Mn steel failed, each fracturing in the longitudinal direction. One of the cylinders was thoroughly analyzed to determine the cause. Deep-drawing flaws were observed on the inner wall of the cylinder...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001446
EISBN: 978-1-62708-234-1
... Abstract A 2 ft. diam 20 ft. long cylinder with a wall thickness of 1 in. used for the transportation of a compressed gas failed by cracking. The cylinder was forged in a low ally steel. The working pressure was 3000 psi and it had been in service for about seven years. A longitudinal crack...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001373
EISBN: 978-1-62708-215-0
... on compressed gas cylinders. There are two outlet ports: one feeds the regulator and the other is connected to a pressure relief fitting. Both are normally machined with external threads. Circumstances Leading to Failure Upon initial installation, both valves failed. Failure of the first valve occurred...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001318
EISBN: 978-1-62708-215-0
... Abstract Failure of three C22000 commercial bronze rupture discs was caused by mercury embrittlement. The discs were part of flammable gas cylinder safety devices designed to fail in a ductile mode when cylinders experience higher than design pressures. The subject discs failed prematurely...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001488
EISBN: 978-1-62708-236-5
... that the explosion took place. The cylinder used by the operator for re-charging the receiver contained not air but oxygen. Compressed air Diesel engines Oxygen Gas cylinder steel (Other, miscellaneous, or unspecified) failure While an attempt was being made to start the diesel engine of a dragline...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001140
EISBN: 978-1-62708-227-3
... employing the “leak-before-break” design philosophy, developed using fracture mechanics, to eliminate the possibility of catastrophic ruptures. Gas cylinders Sea water Al-5Mg Mixed-mode fracture Stress-corrosion cracking Introduction The employment of light cylinders made of aluminum...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0091362
EISBN: 978-1-62708-220-4
... ground out, and the tip of the filler wire that has been oxidized should be snipped off before proceeding with welding. Fourth, a manifold gas system should not be used to supply shielding and backing gas. Individual argon gas cylinders have been found to provide optimal performance. A weld button...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0092148
EISBN: 978-1-62708-235-8
.... The cylinder in which the spool fitted was made of 1117 steel, also gas carburized. Investigation (visual inspection, low magnification images, 400x images, metallographic exam, and hardness testing) supported the conclusion that momentary sliding contact between the spool and the cylinder wall caused unstable...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0047263
EISBN: 978-1-62708-218-1
... through the defect indicated shrinkage porosity. This defect was found to interconnect the water jacket and the exhaust gas flow chamber. No cracks were found by magnetic-particle inspection. The gray iron cylinder head had a hardness of 229 HRB on the surface of the bottom deck. The microstructure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047297
EISBN: 978-1-62708-235-8
...-closer cylinder casting. (a) Fracture region showing predominantly type D graphite. This region was along the partling line of the thin section. 100x. (b) A primary type D graphite structure adjacent to the gas defect (bottom). The outside of the casting is at the top. 63x. (c) A zone remote from the gas...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001667
EISBN: 978-1-62708-235-8
..., is presented. As an example, the materials and metallographic techniques employed in an actual on-site investigation of a gas tungsten-arc weldment joining two large diameter Ti-6Al-4V alloy cylinders are discussed in depth to illustrate what can be accomplished. Cylinders Field Metallography Welded...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001760
EISBN: 978-1-62708-241-9
... the temperature distribution structural analysis involving: assembly loads (bolt forces, press-fits, conical bolt forces, and shrink-fits) thermal load thermal load and gas pressure in cylinder number 2 thermal load and gas pressure in cylinder number 1 Non-conformance of the geometric...
Image
Published: 01 June 2019
Fig. 2 Microstructures of the cracked door-closer cylinder casting. (a) Fracture region showing predominantly type D graphite. This region was along the partling line of the thin section. 100x. (b) A primary type D graphite structure adjacent to the gas defect (bottom). The outside More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001440
EISBN: 978-1-62708-235-8
...-on patch plate or to employ one of the high-strength, non-metallic adhesives. Explosions Gas cylinders Soldered joints Tensile stress 50Pb-50Sn Plate steel Intergranular fracture Liquid metal induced embrittlement Reference is made in other cases in this series of Reports to failures...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003554
EISBN: 978-1-62708-180-1
... by mercury embrittlement. The discs were part of a flammable gas-cylinder safety device designed to fail in a ductile mode when cylinders experience higher-than-design pressures. The subject discs failed prematurely ( Fig. 2 ) below design pressure in a brittle manner. Fractographic examination using SEM...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001408
EISBN: 978-1-62708-220-4
... Abstract Initially, two vertical double-acting two-stage compressors delivering chlorine gas at a pressure of 100 psi appeared to be running satisfactorily. About six months later the LP piston-rod of the No. 2 compressor failed due to burning, the compressor being worked double-acting...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006786
EISBN: 978-1-62708-295-2
... is provided in Ref 11 , which describes the failure of three C22000 commercial bronze rupture discs by mercury embrittlement. The discs were part of a flammable-gas cylinder safety device designed to fail in a ductile mode when cylinders experience higher-than-design pressures. The subject discs failed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001707
EISBN: 978-1-62708-217-4
... features. The cracking was followed by fatigue in one case and catastrophic failure in the other. Hydrogen embrittlement was identified as the most likely mechanism of failure. Aircraft components Cylinders Ejector pistons Landing gear PH 13-8Mo UNS S13800 Mixed-mode fracture Hydrogen damage...
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
... machined forgings. The five cylinders were made by cold shear spinning of forged, machined, spheroidized preforms. The cylinders were annealed after spinning and before welding. All the components were joined by girth welds using the automatic gas tungsten are process. There were no longitudinal seams...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0065825
EISBN: 978-1-62708-228-0
... Abstract A case of continual product refinement stimulated by product failures was described. Brittle fracture of gas transmission line pipe steels occurred demonstrating a poor combination of materials, environment, manufacturing and installation problems, and loads. Initial efforts were...