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molybdenum

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048294
EISBN: 978-1-62708-234-1
... that it was a contributing factor in the failures. Fig. 1 Superheater tubes made of chromium-molybdenum steel (ASME SA-213, grade T-11) that ruptured because of overheating. (a) Tube that failed by stress rupture. (b) Resultant loss of circulation and tensile failure Metallographic Examination...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001177
EISBN: 978-1-62708-234-1
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0048350
EISBN: 978-1-62708-227-3
... Abstract Tubes in a marine boiler on a new ship failed after brief service lives. Circumferential brittle cracking was found to occur in the carbon-molybdenum steel tubes near the points where the tubes were attached to the steam drum. Fatigue striations were revealed by examination of fracture...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c0047406
EISBN: 978-1-62708-232-7
.... (a) Schematic illustration of the pinion, which was sand cast from a chromium-molybdenum steel. Dimensions given in inches. (b) Macrograph of a nital-etched section through a broken tooth showing surface hardening on sides and top of tooth. 2 1 2 ├Ś A heavy wear pattern was visible on one end...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048835
EISBN: 978-1-62708-220-4
... Pressure vessels Welded joints ASTM A204 Grade A UNS K11820 Intergranular fracture Hydrogen damage and embrittlement Welds in two carbon-molybdenum (0.5% Mo) steel catalytic gas-oil desulfurizer reactors cracked under hydrogen pressure-temperature conditions for which hydrogen damage would...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0046242
EISBN: 978-1-62708-236-5
... vibration. Oil lines to the coupling were reportedly not operating shortly after the coupling was installed. Also, chips in the oil were reported on previous inspections of the coupling, but their nature was unknown. Fig. 1 Integral coupling and gear of chromium-molybdenum steel that failed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048331
EISBN: 978-1-62708-229-7
... corrosion. The thinned tubes were reinforced by pad welding. Type 304 stainless steel shields were welded to the stainless steel portions of the top reheater tubes and were held in place about the chromium-molybdenum steel portions of the tubes by steel bands. Coal dust Heat exchanger tubes Thinning...
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Published: 01 December 1992
Fig. 9 Influence of molybdenum content and mold thickness on sulfur and molybdenum segregation on the fracture surface as measured by SIMS. More
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Published: 01 June 2019
Fig. 1 Superheater tubes made of chromium-molybdenum steel (ASME SA-213, grade T-11) that ruptured because of overheating. (a) Tube that failed by stress rupture. (b) Resultant loss of circulation and tensile failure More
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Published: 01 June 2019
Fig. 1 Broken hip prosthesis of cast type ASTM F75 cobalt-chromium-molybdenum alloy. (a) Radiograph of total hip prosthesis. Circular wire marks acetabulum component made from plastics. Arrows (from top to bottom) indicate the area where the prosthesis stem is loosening at the collar, a stem More
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Published: 01 June 2019
Fig. 3 Sheared-off cast cobalt-chromium-molybdenum screw. SEM fractography. (a) Overview of portion of rough fracture surface. (b) Area with fracture planes of three differently oriented grains (single arrow, a). (c) Shearing structures and dimples in grain identified by the numeral 1 in (b More
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Published: 01 June 2019
Fig. 2 Melter electrode assembly: (a) 690 sheath, (b) molybdenum electrode More
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Published: 01 June 2019
Fig. 3 Molybdenum/tungsten drain valve assembly. Arrow indicates fracture surface exposed during disassembly. More
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Published: 01 June 2019
Fig. 7 SEM of the molybdenum electrode. EDX spectra indicated the presence of antimony on the surface of the electrode (see arrows). Nickel from the Inconel sheath was also present. More
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Published: 01 June 2019
Fig. 8 SEM of the molybdenum electrode. EDX spectra indicated the presence of antimony on the grain boundaries (see arrow). Nickel from the Inconel sheath was also present. More
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Published: 01 June 2019
Fig. 1 Integral coupling and gear of chromium-molybdenum steel that failed in fatigue because the part was magnetized and retained metal chips at tooth roots. Dimensions given in inches More
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Published: 01 December 1992
Fig. 4 Effect of molybdenum content on internal cracking. (a)Total crack length detected by color-checking method. (b) Change in fraction of intergranular fracture judged bythree-point bending test. More
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Published: 01 December 1992
Fig. 5 Change in fracture appearance with molybdenum content in three-point bending test specimen. The dark portion is the intergranular fracture (a) 0.01%Mo.(b) 0.21%Mo. More
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Published: 01 December 1992
Fig. 8 Effect of molybdenum content on the depth profile of sulfur ion intensity as measured by SIMS. More
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Published: 01 December 2019
Fig. 5 Molybdenum-rich inclusions observed in the material More