The Structure and Mechanical Properties of the Aging Shape-Memory Ti49Ni51 Alloy after Thermomechanical Treatment

被引：3
|
作者：
Kuranova, N. N. [1 ,2 ]
Makarov, V. V. [1 ]
Pushin, V. G. [1 ,2 ]
Popov, N. A. [1 ,2 ]
机构：
[1] Russian Acad Sci, Ural Branch, Mikheev Inst Met Phys, Ekaterinburg 620108, Russia
[2] Ural Fed Univ Named First President Russia BN Yelt, Ekaterinburg 620002, Russia
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2023年 / 124卷 / 02期
关键词：
shape-memory alloys; aging; plastic deformation; martensitic transformation; mechanical properties; SEVERE PLASTIC-DEFORMATION; NICKELIDE-BASED ALLOYS; PHASE-TRANSFORMATIONS; TINI ALLOY; FEATURES; HEAT;
D O I：
10.1134/S0031918X23700126
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of thermomechanical treatment on the structure and phase transitions of the aging shape-memory Ti-51 at % Ni alloy has been studied. Mechanical tensile tests were performed in combination with optical and electron microscopic and X-ray diffraction studies. An ultrafine grained (UFG) structure was created in the alloy by multipass-rolling plastic deformation and further annealing. It was established for the alloy to have a high level of mechanical properties (ultimate tensile strength up to 1550 MPa at a relative elongation of more than 20%) owing to a highly disperse phase of precipitation with the formation of an UFG structure due to recrystallization.
引用
收藏
页码：230 / 237
页数：8
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