SNAP-ACTION PHASE TRANSFORMATION IN TWO-WAY SHAPE MEMORY Ni-Ti ALLOY

Acta Metallurgica Sinica (English Letters) ›› 1989, Vol. 2 ›› Issue (5): 380-382.

• Research paper • Previous Articles Next Articles

SNAP-ACTION PHASE TRANSFORMATION IN TWO-WAY SHAPE MEMORY Ni-Ti ALLOY

LUO Laizhong ZHANG Jinxiu LIN Guangming Zhongshan University,Guangzhou,510275,China Lecturer,Dept.of Physics and Institute of Material Science,Zhongshan University,Guangzhou,510275,China

Received:1989-10-25 Revised:1989-10-25 Online:1989-10-25 Published:2009-10-10

Abstract

Abstract: The snap-action behavior of a Ni-Ti alloy disc which is controlled by combination of a nonlinear stress field and temperature has been studied.After treatment for two-way shape memory,all shape memory strain of snap-action finishes abruptly at a certain temperature within an interval of less than 1 ms.The results of resistance measurement and in-situ X-ray diffraction indicate that the snap-action strain is mainly resulted from the snap-action β (?)R transformation.

Key words: shape memory alloy, two-way shape memory effect, snap-action phase transformation

LUO Laizhong ZHANG Jinxiu LIN Guangming Zhongshan University,Guangzhou,510275,China Lecturer,Dept.of Physics and Institute of Material Science,Zhongshan University,Guangzhou,510275,China. SNAP-ACTION PHASE TRANSFORMATION IN TWO-WAY SHAPE MEMORY Ni-Ti ALLOY[J]. Acta Metallurgica Sinica (English Letters), 1989, 2(5): 380-382.

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SNAP-ACTION PHASE TRANSFORMATION IN TWO-WAY SHAPE MEMORY Ni-Ti ALLOY

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