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annealing

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001238
EISBN: 978-1-62708-232-7
... Abstract Heating elements, consisting of strips, 40 mm x 2 mm, of the widely used 80Ni-20Cr resistance heating alloy, and designed to withstand a temperature of 1175 deg C, were rendered unusable by scaling after a few months service in a through-type annealing furnace, Although the temperature...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001244
EISBN: 978-1-62708-224-2
... frequently in round wire conveyor belt links because the round wire neither impresses so sharply nor abrades against the cross bars, and it also exerts less torsion than the flat wire. Annealing furnaces Belt conveyors Glass Torsional fatigue Wire Low-carbon steel Fatigue fracture The cross...
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Published: 01 June 2019
Fig. 12 Effect of annealing temperature on core structure of bearing caps of hypoeutectic cast iron, etch: Picral. 2 h at 625°/air. 100 × More
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Published: 01 June 2019
Fig. 13 Effect of annealing temperature on core structure of bearing caps of hypoeutectic cast iron, etch: Picral. 2 h at 650°/air. 200 × More
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Published: 01 June 2019
Fig. 11 Annealing tests with specimens from flange disk. 1 × (see additional designation at fractures) More
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Published: 01 June 2019
Fig. 3 As figure 2 . after annealing in hydrogen. × 130. More
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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 December 2019
Fig. 1 Schematic showing the dimensions of the tube before and after annealing cycle More
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Published: 01 December 2019
Fig. 7 Microstructure of undamaged sleeve showing austenitic grains and annealing twins, 100× More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0048728
EISBN: 978-1-62708-228-0
...-dispersive analysis of the deposits. It was interpreted by the hardness values (higher than typical for annealed copper tubing) that the tubes may not have been annealed after the U-bends were formed and thus the role of residual stresses in the crack was revealed. It was concluded that the tubes failed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001225
EISBN: 978-1-62708-232-7
... Abstract Three radially-cracked disks that circulated the protective gases in a bell-type annealing furnace were examined. During service they had been heated in cycles of 48 h to 720 deg C for 3 h each time, then were kept at temperature for 15 h followed by cooling to 40 deg C in 30 h, while...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0048719
EISBN: 978-1-62708-228-0
... surface and up to 40 HRC at the base of the fin midway between the roots which indicated that the fins were cold formed and not subsequently annealed thus susceptible to SCC because of a high residual stress level. It was revealed by metallographic examination that the fracture was predominantly...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001581
EISBN: 978-1-62708-235-8
... structural collapse, under elevated temperature service, even at temperatures more than 300 deg C (540 deg F) below the normal solution annealing temperature. The creep strength of the recrystallized 304/304L steel was more than 1000 times less than that achievable with solution annealed 304H...
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Published: 01 June 2019
Fig. 8 Structure after 7 h decarburization anneal at 1000° C in air, cross sections, etchant: picral. 100 × Edge structure of the wires. 50 × S1. More
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Published: 01 June 2019
Fig. 9 Structure after 7 h decarburization anneal at 1000 ° C in air, cross sections, etchant: picral. 100 × Edge structure of the wires. 50 ×. S2. More
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Published: 01 June 2019
Fig. 10 Structure after 7 h decarburization anneal at 1000 ° C in air, cross sections, etchant: picral. 100 × Edge structure of the wires. 50 ×. G. More
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Published: 01 June 2019
Fig. 11 Structure after 7 h decarburization anneal at 1000 ° C in air, cross sections, etchant: picral. 100 × Core structure of the wires. 100 ×. S1. More
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Published: 01 June 2019
Fig. 12 Structure after 7 h decarburization anneal at 1000 ° C in air, cross sections, etchant: picral. 100 × Core structure of the wires. 100 ×. S2. More
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Published: 01 June 2019
Fig. 13 Structure after 7 h decarburization anneal at 1000 ° C in air, cross sections, etchant: picral. 100 × Core structure of the wires. 100 ×. G. More
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Published: 01 June 2019
Fig. 6 Microstructure of the core in the annealed region of a damaged wire. Etched in alc. picric acid, 500 × More