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Cooling Rate Dependence of Fatigue Life Time (Nf) of Cu-Al-Ni Alloy Prepared by Liquid-Quenching

Published online by Cambridge University Press:  10 February 2011

K. Mori ,
Y. Tanaka ,
S. Furuya ,
T. Okada ,
K. Komatsuzaki  and
Y. Nishi
K. Mori
Affiliation:
Department of Materials Science, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa, 259–12Japan, [email protected]
Y. Tanaka
Affiliation:
Department of Materials Science, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa, 259–12Japan, [email protected]
S. Furuya
Affiliation:
Department of Materials Science, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa, 259–12Japan, [email protected]
T. Okada
Affiliation:
Department of Materials Science, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa, 259–12Japan, [email protected]
K. Komatsuzaki
Affiliation:
Department of Materials Science, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa, 259–12Japan, [email protected]
Y. Nishi
Affiliation:
Department of Materials Science, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa, 259–12Japan, [email protected]
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Abstract

Since the fatigue life time is a serious problem of the Cu-Al-Ni alloy, it is difficult to apply for practical use. The authors have investigated the influence of the cooling condition of liquid-quenching on fatigue property. The liquid-quenching is performed by a piston-anvil apparatus. It is easy to control the solidification condition. The fatigue life time increases with increasing the cooling rate. The long life time is due to the small grain size, the small volume of γ1' phase, the low density of lattice defects and the low transformation temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 459: Symposium Y – Materials for Smart Systems II , 1996 , 381
Copyright
Copyright © Materials Research Society 1997

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References

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