Effect of the Quasi-Continuous Equal-Channel Angular Pressing on the Structure and Functional Properties of Ti-Ni-Based Shape-Memory Alloys

被引：17

作者：

Khmelevskaya, I. Yu. ^{[1
]}

Karelin, R. D. ^{[1
,3
]}

Prokoshkin, S. D. ^{[1
]}

Andreev, V. A. ^{[2
]}

Yusupov, V. S. ^{[3
]}

Perkas, M. M. ^{[3
]}

Prosvirnin, V. V. ^{[3
]}

Shelest, A. E. ^{[3
]}

Komarov, V. S. ^{[1
]}

机构：

[1] Natl Univ Sci & Technol MISiS, Leninskii Pr 4, Moscow 119049, Russia

[2] Matek Sma Ltd, Ul Karer 2a, Moscow 117449, Russia

[3] Russian Acad Sci, Baikov Inst Met & Mat Sci, Leninskii Pr 49, Moscow 119991, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2017年 / 118卷 / 03期

关键词：

shape-memory alloys; titanium nickelide; thermomechanical treatment; nanostructure; equal-channel angular pressing; functional properties; THERMOMECHANICAL TREATMENT; DEFORMATION TEMPERATURE; MECHANICAL-PROPERTIES; TITANIUM NICKELIDE; PRESSURE; MICROSTRUCTURE; FEATURES; SIZE;

D O I：

10.1134/S0031918X17030073

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effect of severe plastic deformation by equal-channel angular pressing (ECAP) under normal and quasi-continuous regimes on the structure and the mechanical and functional properties of a Ti-50.2 at % Ni shape-memory alloy (SMA) has been studied. ECAP was carried out at an angle of intersection of channels of 120 degrees in the normal regime with heating between passes at 450 degrees C for 20 passes and in the quasi-continuous regime at the temperature of 400 degrees C for three, five, and seven passes. The hot screw rolling with subsequent annealing at 750 degrees C for 30 min and cooling in water was used as a control treatment (CT). A mixed submicrocrystalline and nanosubgrained structure was formed. The increase in the number of passes from three to seven led to a decrease in the average size of structural elements from 115 +/- 5 to 103 +/- 5 nm and to an increase in the fraction of grains/subgrains having a size less than 100 nm. After ECAP (seven passes) and post-deformation annealing at the temperature of 400 degrees C for 1 h, a completely recoverable strain was 9.5%; after normal ECAP, 7.2%; after CT, 4.0%.

引用

页码：279 / 287

页数：9

共 34 条

[1]

Botkin A. V., 2013, THESIS

[2] Functional properties of nanocrystalline, submicrocrystalline and polygonized Ti-Ni alloys processed by cold rolling and post-deformation annealing [J].

Brailovski, V. ;

Prokoshkin, S. ;

Inaekyan, K. ;

Demers, V. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (05) :2066-2075

[3]

Brailovski V., 2003, Shape Memory Alloys: Fundamentals, Modeling and Applications

[4] Structure and properties of the Ti-50.0 at% Ni alloy after strain hardening and nanocrystallizing thermomechanical processing [J].

Brailovski, Vladimir ;

Prokoshkin, Sergei D. ;

Khmelevskaya, Irina Yu. ;

Inaekyan, Karine E. ;

Demers, Vincent ;

Dobatkin, Sergei V. ;

Tatyanin, Evgeny V. .

MATERIALS TRANSACTIONS, 2006, 47 (03) :795-804

[5] Effect of thermocycling on the temperatures of phase transformations, structure, and properties of the equiatomic alloy Ti50.0Ni50.0 [J].

Churakova, A. A. ;

Gunderov, D. V. .

PHYSICS OF METALS AND METALLOGRAPHY, 2016, 117 (01) :99-106

[6]

DEMERS V, 2006, J ASTM INT, V3, P1

[7] MICROSTRUCTURE AND MECHANICAL PROPERTIES OF THE SPD-PROCESSED TiNi ALLOYS [J].

Dmitry, Gunderov ;

Aleksandr, Lukyanov ;

Egor, Prokofiev ;

Anna, Churakova ;

Vladimir, Pushin ;

Sergey, Prokoshkin ;

Vladimir, Stolyarov ;

Ruslan, Vailev .

EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATIONS, 2013, 738-739 :486-+

[8] Evolution of microstructure, macrotexture and mechanical properties of commercially pure Ti during ECAP-conform processing and drawing [J].

Gunderov, D. V. ;

Polyakov, A. V. ;

Semenova, I. P. ;

Raab, G. I. ;

Churakova, A. A. ;

Gimaltdinova, E. I. ;

Sabirov, I. ;

Segurado, J. ;

Sitdikov, V. D. ;

Alexandrov, I. V. ;

Enikeev, N. A. ;

Valiev, R. Z. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 562 :128-136

[9] Structure and properties of Ti-Ni-based alloys after equal-channel angular pressing and high-pressure torsion [J].

Khmelevskaya, I. Yu. ;

Prokoshkin, S. D. ;

Trubitsyna, I. B. ;

Belousov, M. N. ;

Dobatkin, S. V. ;

Tatyanin, E. V. ;

Korotitskiy, A. V. ;

Brailovski, V. ;

Stolyarov, V. V. ;

Prokofiev, E. A. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 481 (1-2 C) :119-122

[10] Studies of composition, deformation temperature and pressure effects on structure formation in severely deformed TiNi-based alloys [J].

Khmelevskaya, I. Yu. ;

Prokoshkin, S. D. ;

Dobatkin, S. V. ;

Tatyanin, E. V. ;

Trubitsyna, I. B. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 438 :472-475

← 1 2 3 4 →