TY - JOUR
T1 - Fretting fatigue in hydrogen gas
AU - Kubota, Masanobu
AU - Noyama, Naoki
AU - Sakae, Chu
AU - Kondo, Yoshiyuki
N1 - Funding Information:
This study was supported by scientific research fund from the New Energy and Industrial Technology Development Organization (NEDO) and the Ministry of Education, Culture, Sports, Science and Technology (MEXT) in Japan.
PY - 2006/10
Y1 - 2006/10
N2 - To clarify the effect of hydrogen gas on fretting fatigue strength of the materials, which supposed to be used for hydrogen utilization machines, fretting fatigue tests were conducted in hydrogen gas. It is important to take fretting fatigue into account in strength design, because many fatigue failure accidents have occurred at joints or contact parts between components. As a part of the experiments, an austenitic stainless steel was focused in this paper. The material was SUS 304. Fretting fatigue strength in hydrogen gas decreased compared with that in air. Tangential force coefficient increased in the reverse order of fretting fatigue strength. Therefore, one of the reasons of the decrease of fretting fatigue strength was that tangential force was different depending on the environment. Absorption of hydrogen occurred during fretting in hydrogen gas was detected. The absorption could be considered as one of the causes of the decrease of fretting fatigue strength, since fretting fatigue life of pre-charged specimen was decreased and also the crack propagation threshold of short fatigue crack was reduced by hydrogen charge.
AB - To clarify the effect of hydrogen gas on fretting fatigue strength of the materials, which supposed to be used for hydrogen utilization machines, fretting fatigue tests were conducted in hydrogen gas. It is important to take fretting fatigue into account in strength design, because many fatigue failure accidents have occurred at joints or contact parts between components. As a part of the experiments, an austenitic stainless steel was focused in this paper. The material was SUS 304. Fretting fatigue strength in hydrogen gas decreased compared with that in air. Tangential force coefficient increased in the reverse order of fretting fatigue strength. Therefore, one of the reasons of the decrease of fretting fatigue strength was that tangential force was different depending on the environment. Absorption of hydrogen occurred during fretting in hydrogen gas was detected. The absorption could be considered as one of the causes of the decrease of fretting fatigue strength, since fretting fatigue life of pre-charged specimen was decreased and also the crack propagation threshold of short fatigue crack was reduced by hydrogen charge.
UR - http://www.scopus.com/inward/record.url?scp=33746615181&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33746615181&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2006.02.014
DO - 10.1016/j.triboint.2006.02.014
M3 - Article
AN - SCOPUS:33746615181
SN - 0301-679X
VL - 39
SP - 1241
EP - 1247
JO - Tribology International
JF - Tribology International
IS - 10
ER -