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五形状记忆合金的应用形状记忆合金要达到成功的应用,必须满足下述条件: (1) 相变温度可以控制。(2) 有良好的加工性能。(3) 热循环过程中有足够的强度,主要是抗疲劳,记忆功能不衰退。(4) 抗腐蚀。(5) 医学应用上还要求与生物的相容性,目前只有Ni-Ti合金可采用。(6) 成本要低,价格便宜。由于上述条件的限制,目前可用的材料只限于镍钛努尔(Nitinol)与β黄铜(Cu-Zn-Al)。据报道,苏联对BTH-1(55Ni+45Ti)
The application of five shape memory alloy Shape memory alloy to achieve successful applications, the following conditions must be met: (1) phase transition temperature can be controlled. (2) have good processing performance. (3) There is sufficient strength during thermal cycling, mainly anti-fatigue, memory function does not decline. (4) Anti-corrosion. (5) Medical applications also require compatibility with organisms, currently only Ni-Ti alloys can be used. (6) The cost is lower, the price is cheaper. Due to the above constraints, currently available materials are limited to Nitinol and β-Brass (Cu-Zn-Al). According to reports, the Soviet Union on the BTH-1 (55Ni + 45Ti)