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镍钛系记忆合金的延展性、形状记忆强度、应变、耐蚀性及稳定性都很好 ,但其成本较高。近年来 ,日本致力于开发一系列改良型镍钛合金 ,通过添加其它元素进一步改善其性能 ,并降低成本。日本住友电气工业公司在镍钛合金中添加铜 (或铝、锆、钒、钴、铁 )元素后 ,经表面深层处理
Nitinol memory alloy ductility, shape memory strength, strain, corrosion resistance and stability are good, but its cost is higher. In recent years, Japan has been devoting itself to developing a series of improved nitinol alloys, further improving its performance and reducing costs by adding other elements. Japan’s Sumitomo Electric Industries Co., Ltd. in nickel-titanium alloy after adding copper (or aluminum, zirconium, vanadium, cobalt, iron) elements, the surface deep processing