Influence of Heat Treatment on Microstructures and Textures of Hot-Extruded Ni47Ti44Nb9 Shape Memory Alloy Tubes

被引：0

作者：

Yan, Ying ^{[1
]}

Jin, Wei ^{[2
]}

Li, Xiao-wu ^{[1
]}

机构：

[1] Northeastern Univ, Coll Sci, Inst Mat Phys & Chem, Shenyang 110004, Peoples R China

[2] Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China

来源：

ADVANCES IN KEY ENGINEERING MATERIALS | 2011年 / 214卷

关键词：

Hot-extruded Ni47Ni44Nb9 tube; Texture; Microstructure; Heat treatment; NITI; TRANSFORMATION; DEFORMATION; ORIENTATION; BEHAVIOR; CRYSTALS;

D O I：

10.4028/www.scientific.net/AMR.214.286

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microstructures and textures of the hot forged bar and hot-extruded tubes of Ni47Ti44Nb9 alloy as well as influence of heat treatment on them were studied in order to obtain a desired preferred orientation along the tube radial direction. The results show that B2 phase in hot-extruded tubes has a fine fibred shape and the main texture components are close to gamma-fibre. Many fine recrystallized grains are formed for tubes heat treated at 600 degrees C and gamma-fibre is enhanced, which is beneficial to improving shape memory performances along the tube radial direction. Grain growth occurs at 850 degrees C, and strong texture components deviate from gamma-fibre.

引用

页码：286 / +

页数：2

共 10 条

[1] Predicting the orientation-dependent stress-induced transformation and detwinning response of shape memory alloy single crystals [J].

Buchheit, TE ;

Wert, JA .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1996, 27 (02) :269-279

[2] Textures in cold-rolled and annealed Ti50Ni50 shape memory alloy [J].

Chang, SH ;

Wu, SK .

SCRIPTA MATERIALIA, 2004, 50 (07) :937-941

[3] Stress-induced martensitic phase transformation in thin sheets of Nitinol [J].

Daly, S. ;

Ravichandran, G. ;

Bhattacharya, K. .

ACTA MATERIALIA, 2007, 55 (10) :3593-3600

[4] The role of intergranular constraint on the stress-induced martensitic transformation in textured polycrystalline NiTi [J].

Gall, K ;

Lim, TJ ;

McDowell, DL ;

Sehitoglu, H ;

Chumlyakov, YI .

INTERNATIONAL JOURNAL OF PLASTICITY, 2000, 16 (10-11) :1189-1214

[5] Experimental study on the anisotropic behavior of textured NiTi pseudoelastic shape memory alloys [J].

Gao, S ;

Yi, S .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 362 (1-2) :107-111

[6] Effect of texture orientation on the martensite deformation of NiTi shape memory alloy sheet [J].

Liu, Y ;

Xie, ZL ;

Van Humbeeck, J ;

Delaey, L .

ACTA MATERIALIA, 1999, 47 (02) :645-660

[7]

Ray RK, 1994, INT MATER REV, V39, P129, DOI 10.1179/095066094790326112

[8] DEFORMATION-BEHAVIOR OF SHAPE MEMORY TI-NI ALLOY CRYSTALS [J].

SABURI, T ;

YOSHIDA, M ;

NENNO, S .

SCRIPTA METALLURGICA, 1984, 18 (04) :363-366

[9]

Yang G.J., 1994, RARE METAL MAT ENG, V23, P13

[10] Pseudo-elastic strain estimation of textured TiNi shape memory alloys [J].

Yuan, WQ ;

Yi, S .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 271 (1-2) :439-448

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