MEASUREMENT OF STATIC AND DYNAMIC ELASTIC-MODULI OF SHAPE-MEMORY ALLOYS

被引:5
|
作者
TONOKAWA, T [1 ]
MORITO, S [1 ]
NAKAJIMA, Y [1 ]
OOISHI, A [1 ]
OTSUKA, K [1 ]
SUZUKI, T [1 ]
机构
[1] UNIV TSUKUBA,INST MAT SCI,TSUKUBA,IBARAKI 305,JAPAN
关键词
PSEUDOELASTICITY; RUBBER-LIKE ELASTICITY; SHAPE MEMORY ALLOYS; RECTANGULAR PARALLELEPIPED RESONANCE METHOD; AU-CD ALLOYS; AU-CU-ZN ALLOYS;
D O I
10.1143/JJAP.33.2897
中图分类号
O59 [应用物理学];
学科分类号
摘要
The mechanism of the so-called rubberlike elasticity in shape memory alloys such as Au-Cd and Cu-Au-Zn alloys is investigated using the measurement of static and dynamic elastic moduli. A large difference between the static and dynamic elastic moduli is found. While the dynamic modulus remains almost unchanged during room-temperature annealing for 3 days. the static modulus increases appreciably during the same annealing, corresponding to the appearance of the rubberlike elasticity. These experimental results are discussed in terms of the pseudoelasticity due to twin boundary motion.
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页码:2897 / 2900
页数:4
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