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

页码：230 / 237

页数：8

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