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steel structure

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Published: 01 June 2019
Fig. 7 X20CrMoV12-1 steel, structure of a new pipe. More
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Published: 01 January 2002
Fig. 7 Effect of welding on the life of a carbon steel structure. (a) and (b) 46 cm (18 in.) long crack found in a carbon steel as-forged nozzle that was arc gouged. Failure occurred after five years in service during cold start-up procedure. (c) Micrograph showing a hardened layer More
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Published: 30 August 2021
Fig. 7 Effect of welding on the life of a carbon steel structure. (a) and (b) show the 46 cm (18 in.) long crack found in a carbon steel as-forged nozzle that was arc gouged. Failure occurred after five years in service during a cold start-up procedure. (c) Micrograph showing a hardened layer More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0089459
EISBN: 978-1-62708-235-8
... was recommended. Banded structure Forgings Rods Segregation Medium-carbon steel Metalworking-related failures Fatigue fracture The broken connecting end of a forged medium-carbon steel rod used in an application in which it was subjected to severe low-frequency loading is illustrated in Fig. 1...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0046155
EISBN: 978-1-62708-233-4
... to the member ( Fig. 1 ). At failure, the part was receiving the second set of loads up to 103.6% of design load. The post was made of D-6ac steel and was heat treated to a tensile strength of 1517 to 1655 MPa (220 to 240 ksi). Fig. 1 Structural member (post) of D-6ac steel that failed by fatigue...
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Published: 01 June 2019
Fig. 2 a). Edge structure of a steel with 0.73% C after 4 h annealing in wet hydrogen of 1 atm pressure, etched in picral, 100 ×. 700° C. b) Edge structure of a steel with 0.73% C after 4 h annealing in wet hydrogen of 1 atm pressure, etched in picral, 100 ×. 800° C. c) Edge structure More
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Published: 01 June 2019
Fig. 4 Edge structure of a spring washer of silicon steel, broken ahead of time in a fatigue test. Cross section, etched in nital. 100 × More
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Published: 01 June 2019
Fig. 10 a). Change in structure by hydrogen attack, etched in nital. 200 ×. Steel with 0,45% C. a). Initial state. b). Change in structure by hydrogen attack, etched in nital. 200 ×. Steel with 0,45% C. 10.0 h, 400°C, 300 atü H 2 . c). Change in structure by hydrogen attack, etched in nital More
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Published: 01 June 2019
Fig. 2 Coarse bainitic structure of steel in condition as received, etched with Nital. 200 × More
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Published: 01 June 2019
Fig. 3 Structure of the steel after the heat treatment (tempered martensite), etched with Nital. 200 × More
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Published: 01 June 2019
Fig. 6 X20CrMoV12-1 steel, globulization of the original structure. More
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Published: 01 January 2002
Fig. 23 Graphitized microstructure of SA-210-A-1 plain carbon steel. The structure is ferrite and graphite with only a trace of spheroidized carbon remaining. Etched with nital. 500× More
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Published: 30 August 2021
Fig. 12 Effect of austenitizing temperature on structure of 1% C steel. (a) Quenched from 1000 °C (1830 °F). Coarse martensite plates (gray) and retained austenite (white). Vickers hardness of 745. (b) Quenched from 750 °C (1380 °F). Spheroidized carbides (white) in a fine martensite matrix More
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Published: 30 August 2021
Fig. 13 Structure at the surface of a steel that was carburized and then subjected to decarburization. (a) Below Ac 1 . (b) Between Ac 1 and Ac 3 . (c) Above Ac 3 More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001444
EISBN: 978-1-62708-231-0
... Abstract To permit bolting of a 90 lb/yd. flat-bottomed rail to a steel structure, rectangular slots 2 in. wide x 1 in. deep were flame-cut in the base of the rail at 2 ft intervals to suit existing bolt holes. During subsequent handling, one of the rails (which were about 25 ft long...
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Published: 01 June 2019
Fig. 2 Structure of a sliver, etch: Nital. a). View. 100× Top (rough and spongy): metal center (fissured): alloy bottom (etched): steel. Structure of a sliver, etch: Nital. b). Steel structure. 500× Structure of a sliver, etch: Nital. c). Metal structure. 500× More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001179
EISBN: 978-1-62708-228-0
... at 530 deg C. The connectors were made of SAE 4140 Cr-Mo steel. The material for the rod pipes was Fe-0.4C-1Mn steel. Structural stresses played a role in the cracking. Iron sulfide formed on the fracture planes and flake-like stress cracks occurred in the steel. The hydrogen sulfide content of the gas...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c9001183
EISBN: 978-1-62708-223-5
... the structure of a heat treated alloy steel ( Figs. 2 ). A strongly fissured and therefore brittle alloy zone was in contact with the steel. The existence of a superlattice phase Fe 3 Al was probable. At the outer edge metal was adhering at some places that was roughened during polishing and therefore was soft...
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Published: 01 June 2019
Fig. 1 Structural member (post) of D-6ac steel that failed by fatigue cracking. The cracking was initiated by rubbing and galling from a mating carry-through box that was bolted to the post. More
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Published: 01 January 2002
Fig. 2 Picral-etched specimen of structural steel that was exposed to contaminated agricultural ammonia showing nonbranched stress-corrosion cracks. 75× More