Effect of Prestrain on Hydrogen Embrittlement Susceptibility of EH 36 Steels Using In Situ Slow-Strain-Rate Testing

2018 ◽  
Vol 25 (3) ◽  
pp. 584-593 ◽  
Author(s):  
Cheolho Park ◽  
Namhyun Kang ◽  
Stephen Liu ◽  
Juseung Lee ◽  
Eunjoon Chun ◽  
...  
CORROSION ◽  
1994 ◽  
Vol 50 (10) ◽  
pp. 785-791 ◽  
Author(s):  
T. Haruna ◽  
T. Shibata

Abstract The initiation and growth of cracks in type 316L (UNS S31603) stainless steel (SS) in a chloride solution containing thiosulfate ions (S2O32−) during slow strain rate testing (SSRT) were analyzed on the basis of fracture mechanics. Crack behavior on the specimen surface was observed in situ using a charge-coupled device (CCD) camera with a videotape recording system. Three types of specimens were used: a single-notched plate, a smooth cylinder, and a smooth plate. The single-notched specimen failed to produce a sharp crack similar to that formed on the smooth specimens. For the smooth specimens, the stress intensity factor (KISCC) was found to vary from 3.9 MN/m3/2 to 5.0 MN/m3/2, and the crack growth rate ranged from 5.2 × 10−9 m/s to 1.0 × 10−8 m/s, which approximately agreed with data determined by other authors using a fracture mechanics approach. Thus, the SSRT combined with the in situ observation technique was useful in analyzing the crack initiation and growth process.


2017 ◽  
Vol 58 (6) ◽  
pp. 886-891 ◽  
Author(s):  
Kenichi Koide ◽  
Toshirou Anraku ◽  
Akihiro Iwase ◽  
Hiroyuki Inoue

CORROSION ◽  
1988 ◽  
Vol 44 (12) ◽  
pp. 920-926 ◽  
Author(s):  
D. R. McIntyre ◽  
R. D. Kane ◽  
S. M. Wilhelm

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