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发明公开
CN1528930A 微米细晶钛镍－铌形状记忆合金块材制备方法 失效 - 权利终止

微米细晶钛镍－铌形状记忆合金块材制备方法
摘要：
一种微米细晶钛镍－铌形状记忆合金块材制备方法，将原子百分比为45％～50％的钛，40％～45％的镍，5％～10％的铌，在真空条件下熔炼，制成钛镍－铌合金铸锭，将鈦镍－铌合金块材切割成坯料，进行表面光洁度处理，并涂敷玻璃润滑剂，采用挤压通道角度为90～120°的等径弯角挤压模具，模具型腔表面涂敷石墨润滑剂，将坯料、模具分别加热保温，并同时从加热炉中取出进行等径弯角挤压，最终获得强度、塑性等性能良好的钛镍－铌合金块材。本发明可以解决钛镍－铌形状记忆合金室温塑性差的问题，提高合金力学性能，同时降低合金处理成本，提高其成材率。
摘要（英）：

The invention is a manufacturing method for a kind of micron tiny crystal titanium nickel-niobium shape memorizing alloy block materials, 45%-50% titanium, 40%-45% nickel, 5%-10% niobium are melted and produced into titanium nickel-niobium alloy cast ingot, and cuts the titanium nickel-niobium alloy block material into blank, and carries on surface finish process, and paints with glass lubricate, uses isometric curved squeezing mould with 90-120 degrees channel angle, the mould cavity surface is painted with black lead lubricate, the blank and mould are heated and carries on temperature reservation, and takes them out to be squeezed at the same time, finally gets the product. The invention solves the problem that the bad plastic property of titanium nickel-niobium shape memorizing alloy in room temperature, enhances the alloy mechanical performance, and lowers the cost.

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