钛镍系形状记忆合金具有优越的形状记忆特性和耐蚀性,已用于许多工业和医疗部门。一般用熔炼铸造法生产的合金容易产生偏析等成分的不均匀性,因为形状记忆特性对于成分很敏感,所以粉末冶金法生产这类合金受到普遍重视。利用等离子旋转电极法制得的合金粉末通过热等静压制成的合 Titanium nickel shape memory alloys have excellent shape memory properties and corrosion resistance and have been used in many industrial and medical applications. In general, the alloy produced by the smelting casting method tends to have nonuniformity such as segregation. Because the shape memory characteristics are very sensitive to the composition, the production of such alloys by powder metallurgy has received widespread attention. The alloy powders obtained by the plasma rotating electrode method are made by hot isostatic pressing