Rapidly solidified and optimally constraint-aged Ni₅₁Ti₄₉ shape memory alloy aiming at making a purpose-designed bio-actuator

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• 作者：Y.Y. Li^a ; X.Y. Yao^b ; S.S. Cao^a ; X. Ma^a ; C.B. Ke^a ; X.P. Zhang^a ; ^{mexzhang@scut.edu.cn}
• 关键词：NiTi alloy ; Constraint-aging ; Two-way shape memory effect ; Rapid solidification ; Bio-actuator
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：118
• 期：Complete
• 页码：99-106
• 全文大小：1766 K
• 卷排序：118

文摘

Rapidly solidified fine-grain NiTi alloy with enhanced shape memory effect and recovery ratio. Optimized two-way shape memory effect of NiTi alloy for making AAS bio-actuator functioning in 35–55 °C. Combined effect of rapid solidification and optimal constraint-aging on size and distribution of Ni4Ti3 precipitates. Strongly oriented nano-scale Ni4Ti3 precipitates lead to improved two-way shape memory effect in narrow temperature range.