Variation in structure and shape recovery parameters in TiNi-based alloys as a function of their composition

被引：0
|
作者：
M. I. Soldatova
V. N. Khodorenko
S. G. Anikeev
V. É. Gunther
机构：
[1] National Research Tomsk State University,Scientific Research Institute of Medical Materials and Shape
[2] SPTI of TSU,Memory Implants
来源：
Russian Physics Journal | 2012年 / 55卷
关键词：
functional alloys; martensitic transformations; structure; form alteration parameters;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The changes of structure and shape recovery parameters of functional titanium nickel alloys of different compositions TN-1В, TN-20, and TN-10, are investigated. It is shown that the features of structure formation control the variation in the basic characteristics of the alloys. Precipitation of the titanium-enriched, Ti2Ni, and nickel-enriched, TiNi3, phases in the course their production and subsequent thermomechanical processing results in shifting the phase-transformation regions and changing the parameters of shape-recovery effects. An increase in the concentration of nickel ensures a longer period of manifestation of shape-recovery effects due to a decrease in the temperature of the onset of martensitic transformation Ms and an increase in the temperature Md, which offers a possibility of using these alloys in a wide range of temperatures.
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页码：629 / 636
页数：7
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