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介绍镍钛合金获得超弹性试验方法，研究冷拔态及冷拔退火态丝材的超弹性特性，对产生超弹性的机理进行讨论。
The superelasticity test method of nickel-titanium alloy was introduced to study the superelastic properties of cold-drawn and cold-drawn annealed silk, and the mechanism of superelasticity was discussed.