TY - GEN
T1 - Effects of hydrogen environment on fatigue characteristics of 18Cr-8Ni stainless steel
AU - Kawamoto, K.
AU - Aoki, Y.
AU - Oda, Y.
AU - Yoshimura, T.
AU - Noguchi, H.
AU - Higashida, K.
PY - 2005
Y1 - 2005
N2 - In order to clarify the effects of hydrogen on the fatigue characteristics of an austenitic stainless steel, bending fatigue tests were conducted in air, in a hydrogen gas and in a nitrogen gas. Main results obtained are as follows. Effects of hydrogen gas environment are not clearly seen on the strain range fatigue life diagram, because there are opposite effects to crack propagation and to crack initiation; accelerates crack propagation, but retards crack initiation. Striation spacing or in-situ observation confirms the acceleration. The retardation seems to be attributed to the absence of oxygen or water vapor in the hydrogen gas.
AB - In order to clarify the effects of hydrogen on the fatigue characteristics of an austenitic stainless steel, bending fatigue tests were conducted in air, in a hydrogen gas and in a nitrogen gas. Main results obtained are as follows. Effects of hydrogen gas environment are not clearly seen on the strain range fatigue life diagram, because there are opposite effects to crack propagation and to crack initiation; accelerates crack propagation, but retards crack initiation. Striation spacing or in-situ observation confirms the acceleration. The retardation seems to be attributed to the absence of oxygen or water vapor in the hydrogen gas.
UR - http://www.scopus.com/inward/record.url?scp=35148868220&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=35148868220&partnerID=8YFLogxK
U2 - 10.4028/0-87849-964-4.283
DO - 10.4028/0-87849-964-4.283
M3 - Conference contribution
AN - SCOPUS:35148868220
SN - 0878499644
SN - 9780878499649
T3 - Materials Science Forum
SP - 283
EP - 286
BT - Materials Structure and Micromechanics of Fracture IV, MSMF-4 - Proceedings of the Fourth International Conference on Materials Structure and Micromechanics of Fracture
PB - Trans Tech Publications Ltd
T2 - 4th International Conference on Materials Structure and Micromechanics of Fracture, MSMF-4
Y2 - 23 June 2004 through 25 June 2004
ER -