Abstract
The fretting fatigue test of austenitic stainless steels, JIS SUS304 and SUS316, was carried out in 0.12MPa hydrogen and air. The fretting fatigue strength of both materials was reduced by hydrogen. One of the possible causes was adhesion between the fretting surfaces which was predominant in hydrogen. The effect of specimen finishing on adhesion was also verified. For this purpose, two surface roughness were prepared with Ra = 0.420μm and 0.008μm. During the fretting fatigue test of these specimens in air, adhesion occurred in the smoother surface specimen but did not occur in the rougher surface specimen. As a result, the fretting fatigue strength decreased when adhesion occurred. Therefore, it can be considered that adhesion resulted in the reduction of the fretting fatigue strength in smoother specimens in air and in 0.12MPa hydrogen. Strain-induced martensite was found in the region of the adhered part, possibly due to the severe cyclic strain occurred locally at the adhered region.
| Original language | English |
|---|---|
| Title of host publication | 19th European Conference on Fracture |
| Subtitle of host publication | Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 |
| Publisher | European Conference on Fracture, ECF |
| ISBN (Print) | 978-5-905576-18-8 |
| Publication status | Published - Jan 1 2012 |
| Event | 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 - Kazan, Russian Federation Duration: Aug 26 2012 → Aug 31 2012 |
Publication series
| Name | 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 |
|---|
Other
| Other | 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 |
|---|---|
| Country | Russian Federation |
| City | Kazan |
| Period | 8/26/12 → 8/31/12 |
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All Science Journal Classification (ASJC) codes
- Safety, Risk, Reliability and Quality
Cite this
Considering the mechanisms causing reduction of fretting fatigue strength by hydrogen. / Kubota, Masanobu; Shiraishi, Yuki; Komoda, Ryosuke; Kondo, Yoshiyuki; Furtado, Jader.
19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012. European Conference on Fracture, ECF, 2012. (19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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TY - GEN
T1 - Considering the mechanisms causing reduction of fretting fatigue strength by hydrogen
AU - Kubota, Masanobu
AU - Shiraishi, Yuki
AU - Komoda, Ryosuke
AU - Kondo, Yoshiyuki
AU - Furtado, Jader
PY - 2012/1/1
Y1 - 2012/1/1
N2 - The fretting fatigue test of austenitic stainless steels, JIS SUS304 and SUS316, was carried out in 0.12MPa hydrogen and air. The fretting fatigue strength of both materials was reduced by hydrogen. One of the possible causes was adhesion between the fretting surfaces which was predominant in hydrogen. The effect of specimen finishing on adhesion was also verified. For this purpose, two surface roughness were prepared with Ra = 0.420μm and 0.008μm. During the fretting fatigue test of these specimens in air, adhesion occurred in the smoother surface specimen but did not occur in the rougher surface specimen. As a result, the fretting fatigue strength decreased when adhesion occurred. Therefore, it can be considered that adhesion resulted in the reduction of the fretting fatigue strength in smoother specimens in air and in 0.12MPa hydrogen. Strain-induced martensite was found in the region of the adhered part, possibly due to the severe cyclic strain occurred locally at the adhered region.
AB - The fretting fatigue test of austenitic stainless steels, JIS SUS304 and SUS316, was carried out in 0.12MPa hydrogen and air. The fretting fatigue strength of both materials was reduced by hydrogen. One of the possible causes was adhesion between the fretting surfaces which was predominant in hydrogen. The effect of specimen finishing on adhesion was also verified. For this purpose, two surface roughness were prepared with Ra = 0.420μm and 0.008μm. During the fretting fatigue test of these specimens in air, adhesion occurred in the smoother surface specimen but did not occur in the rougher surface specimen. As a result, the fretting fatigue strength decreased when adhesion occurred. Therefore, it can be considered that adhesion resulted in the reduction of the fretting fatigue strength in smoother specimens in air and in 0.12MPa hydrogen. Strain-induced martensite was found in the region of the adhered part, possibly due to the severe cyclic strain occurred locally at the adhered region.
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M3 - Conference contribution
AN - SCOPUS:84905483146
SN - 978-5-905576-18-8
T3 - 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012
BT - 19th European Conference on Fracture
PB - European Conference on Fracture, ECF
ER -