Abstract

Amorphous ribbons from a rapidly quenched alloy of the TiNi–TiCu quasi-binary system with copper content of 30 at % are crystallized via electric pulse treatment with variable durations of impact in the range of 1 to 100 ms at external tensile stress of up to 250 MPa. It is shown that the formed bimorph structure of columnar and coarse crystals is characterized by considerable differences when compared to a rapidly quenched alloy with 25 at % copper. An increase in tensile stress does not affect the phase composition or microstructure of the alloy, but it does lower the critical temperatures of martensitic transformation.

中文翻译：

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拉应力电脉冲处理对快速淬火Ti50Ni20Cu30合金性能的影响

摘要

来自铜含量为 30 at % 的 TiNi-TiCu 准二元系统的快速淬火合金的非晶带通过电脉冲处理结晶，在高达 250 的外部拉伸应力下，冲击持续时间为 1 到 100 毫秒兆帕。结果表明，与含 25 at% 铜的快速淬火合金相比，形成的柱状和粗晶双晶结构具有相当大的差异。拉应力的增加不会影响合金的相组成或显微组织，但会降低马氏体转变的临界温度。