Abstract
This study is conducted to clarify the relationship between the fatigue strength of nitrided titanium and that of the substrate. The result shows that the fatigue strength of nitrided pure titanium is improved by the increase in the fatigue strength of its substrate. It can be considered that this improvement is caused by the reduction in the magnitude of the stress field which is generated in the compound-layer by the slip of the substrate. However, the above improvement is limited in case of nitrided titanium alloys which have high strength such as nitrided Ti-6 Al-4 V and SP-700 alloys. That is because the compound-layer is subjected to the additional intensive tensile stress induced by the difference of Young's moduli between the layer and the substrate.
| Original language | English |
|---|---|
| Pages (from-to) | 719-725 |
| Number of pages | 7 |
| Journal | Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A |
| Volume | 67 |
| Issue number | 656 |
| Publication status | Published - 2001 |
| Externally published | Yes |
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Keywords
- Compound-layer
- Fatigue
- Fatigue strength
- Hardness
- Nitriding
- Nonferrous metal
- Pure titanium
- Residual stress
- SP-700 alloy
- Ti-6Al-4 V alloy
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Materials Science(all)
Cite this
Fatigue strength of nitrided high-strength titanium alloy. / Morita, Tatsuro; Fuchikawa, Syunsuke; Komotori, Jun; Shimizu, Masao; Minakawa, Kuninori; Kawasaki, Kazuhiro.
In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 67, No. 656, 2001, p. 719-725.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fatigue strength of nitrided high-strength titanium alloy
AU - Morita, Tatsuro
AU - Fuchikawa, Syunsuke
AU - Komotori, Jun
AU - Shimizu, Masao
AU - Minakawa, Kuninori
AU - Kawasaki, Kazuhiro
PY - 2001
Y1 - 2001
N2 - This study is conducted to clarify the relationship between the fatigue strength of nitrided titanium and that of the substrate. The result shows that the fatigue strength of nitrided pure titanium is improved by the increase in the fatigue strength of its substrate. It can be considered that this improvement is caused by the reduction in the magnitude of the stress field which is generated in the compound-layer by the slip of the substrate. However, the above improvement is limited in case of nitrided titanium alloys which have high strength such as nitrided Ti-6 Al-4 V and SP-700 alloys. That is because the compound-layer is subjected to the additional intensive tensile stress induced by the difference of Young's moduli between the layer and the substrate.
AB - This study is conducted to clarify the relationship between the fatigue strength of nitrided titanium and that of the substrate. The result shows that the fatigue strength of nitrided pure titanium is improved by the increase in the fatigue strength of its substrate. It can be considered that this improvement is caused by the reduction in the magnitude of the stress field which is generated in the compound-layer by the slip of the substrate. However, the above improvement is limited in case of nitrided titanium alloys which have high strength such as nitrided Ti-6 Al-4 V and SP-700 alloys. That is because the compound-layer is subjected to the additional intensive tensile stress induced by the difference of Young's moduli between the layer and the substrate.
KW - Compound-layer
KW - Fatigue
KW - Fatigue strength
KW - Hardness
KW - Nitriding
KW - Nonferrous metal
KW - Pure titanium
KW - Residual stress
KW - SP-700 alloy
KW - Ti-6Al-4 V alloy
UR - http://www.scopus.com/inward/record.url?scp=37049034975&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=37049034975&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:37049034975
VL - 67
SP - 719
EP - 725
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
SN - 0387-5008
IS - 656
ER -