Phase Transformation Behavior of Ti-Ni-Cu Shape Memory Alloys by P/M Process

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概要

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• Ti-Ni-Cu shape memory alloy was fabricated by mixed elemental powders using a pulse-current pressure sintering equipment. The effect of Cu addition on the phase transformation behavior of the sintered alloys was investigated. An increase in Cu content changed the crystal structure of the alloy. The 5at%Cu and 10at%Cu alloys consists of B2 and B19 phases, but the 15 at%Cu and 20 at%Cu alloys consists of B2, B19 and B19 phases. Especially, the 20 at%Cu alloy clearly showed the two-step transformation. The transformation hysteresis of the 20at%Cu alloy was approximately 10 K. It is similar to that of the wrought alloy. Thus, it was found that the P/M alloy obtained shows sufficient shape recovery property.

著者

• Kyogoku Hideki

  School of Engineering, Kinki University

関連論文

• Phase Transformation Behavior of Ti-Ni-Cu Shape Memory Alloys by P/M Process

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