Abstract
In order to demonstrate the effect that the compressive residual stress introduced by cavitation peening has on suppressing the invasion of the surface of steel by hydrogen, we examined the surface after hydrogen charging using a spherical indenter. It was demonstrated that hydrogen considerably hardens the surface of austenitic stainless steel by 35% and that the surface hardening induced by hydrogen was reduced with increasing compressive residual stress introduced by cavitation peening. Moreover, the surface hardness was restored to its initial state after two weeks due to hydrogen desorption from the charged surface. This shows that the hardening was caused by the invasion of the surface by hydrogen and that the introduction of compressive residual stress suppresses it.
| Original language | English |
|---|---|
| Pages (from-to) | 3747-3750 |
| Number of pages | 4 |
| Journal | Surface and Coatings Technology |
| Volume | 206 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - May 15 2012 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
Cite this
Using an indentation test to evaluate the effect of cavitation peening on the invasion of the surface of austenitic stainless steel by hydrogen. / Takakuwa, Osamu; Soyama, H.
In: Surface and Coatings Technology, Vol. 206, No. 18, 15.05.2012, p. 3747-3750.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Using an indentation test to evaluate the effect of cavitation peening on the invasion of the surface of austenitic stainless steel by hydrogen
AU - Takakuwa, Osamu
AU - Soyama, H.
PY - 2012/5/15
Y1 - 2012/5/15
N2 - In order to demonstrate the effect that the compressive residual stress introduced by cavitation peening has on suppressing the invasion of the surface of steel by hydrogen, we examined the surface after hydrogen charging using a spherical indenter. It was demonstrated that hydrogen considerably hardens the surface of austenitic stainless steel by 35% and that the surface hardening induced by hydrogen was reduced with increasing compressive residual stress introduced by cavitation peening. Moreover, the surface hardness was restored to its initial state after two weeks due to hydrogen desorption from the charged surface. This shows that the hardening was caused by the invasion of the surface by hydrogen and that the introduction of compressive residual stress suppresses it.
AB - In order to demonstrate the effect that the compressive residual stress introduced by cavitation peening has on suppressing the invasion of the surface of steel by hydrogen, we examined the surface after hydrogen charging using a spherical indenter. It was demonstrated that hydrogen considerably hardens the surface of austenitic stainless steel by 35% and that the surface hardening induced by hydrogen was reduced with increasing compressive residual stress introduced by cavitation peening. Moreover, the surface hardness was restored to its initial state after two weeks due to hydrogen desorption from the charged surface. This shows that the hardening was caused by the invasion of the surface by hydrogen and that the introduction of compressive residual stress suppresses it.
UR - http://www.scopus.com/inward/record.url?scp=84859992235&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859992235&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2012.03.027
DO - 10.1016/j.surfcoat.2012.03.027
M3 - Article
AN - SCOPUS:84859992235
VL - 206
SP - 3747
EP - 3750
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
IS - 18
ER -