Microstructure and properties of pure titanium processed by equal-channel angular pressing at room temperature

被引：192

作者：

Zhao, Xicheng ^{[3
]}

Fu, Wenjie ^{[4
]}

Yang, Xirong ^{[3
]}

Langdon, Terence G. ^{[1
,2
,5
]}

机构：

[1] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA

[2] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA

[3] Xian Univ Architecture & Technol, Sch Met Engn, Xian 710055, Peoples R China

[4] Western Met Mat Co Ltd, Xian 710065, Peoples R China

[5] Univ Southampton, Sch Engn Sci, Mat Res Grp, Southampton SO17 1BJ, Hants, England

来源：

SCRIPTA MATERIALIA | 2008年 / 59卷 / 05期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

equal-channel angular pressing; mechanical properties; microstructure; titanium; twinning;

D O I：

10.1016/j.scriptamat.2008.05.001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Experiments show that commercial purity titanium may be processed by equal-channel angular pressing at room temperature by increasing the channel angle within the die and using a relatively slow ram speed. The microstructure of the pressed material contains shear bands and deformation twins as found in titanium pressed at significantly higher temperatures. The material also exhibits improvements in the yield stress, ultimate strength and microhardness that are slightly greater than the improvements attained after pressing at higher temperatures. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：542 / 545

页数：4

共 32 条

[1] Corrosion resistance of ultra fine-grained Ti [J].

Balyanov, A ;

Kutnyakova, J ;

Amirkhanova, NA ;

Stolyarov, VV ;

Valiev, RZ ;

Liao, XZ ;

Zhao, YH ;

Jiang, YB ;

Xu, HF ;

Lowe, TC ;

Zhu, YT .

SCRIPTA MATERIALIA, 2004, 51 (03) :225-229

[2] Influence of pressing speed on microstructural development in equal-channel angular pressing [J].

Berbon, PB ;

Furukawa, M ;

Horita, Z ;

Nemoto, M ;

Langdon, TG .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1999, 30 (08) :1989-1997

[3] The processing of difficult-to-work alloys by ECAP with an emphasis on magnesium alloys [J].

Figueiredo, Roberto B. ;

Cetlin, Paulo R. ;

Langdon, Terence G. .

ACTA MATERIALIA, 2007, 55 (14) :4769-4779

[4] Texture evolution of the strip cast 1050 Al alloy processed by continuous confined strip shearing and its formability evaluation [J].

Han, JH ;

Seok, HK ;

Chung, YH ;

Shin, MC ;

Lee, JC .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 323 (1-2) :342-347

[5] Continuous frictional angular extrusion and its application in the production of ultrafine-grained sheet metals [J].

Huang, Y. ;

Prangnell, P. B. .

SCRIPTA MATERIALIA, 2007, 56 (05) :333-336

[6] Principle of equal-channel angular pressing for the processing of ultra-fine grained materials [J].

Iwahashi, Y ;

Wang, JT ;

Horita, Z ;

Nemoto, M ;

Langdon, TG .

SCRIPTA MATERIALIA, 1996, 35 (02) :143-146

[7] Deformation behavior and plastic instabilities of ultrafine-grained titanium [J].

Jia, D ;

Wang, YM ;

Ramesh, KT ;

Ma, E ;

Zhu, YT ;

Valiev, RZ .

APPLIED PHYSICS LETTERS, 2001, 79 (05) :611-613

[8] Effects of grain size and pressing speed on the deformation mode of commercially pure Ti during equal channel angular pressing [J].

Kim, I ;

Kim, J ;

Shin, DH ;

Park, KT .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34A (07) :1555-1558

[9] Deformation twins in pure titanium processed by equal channel angular pressing [J].

Kim, I ;

Kim, J ;

Shin, DH ;

Laio, XZ ;

Zhu, YT .

SCRIPTA MATERIALIA, 2003, 48 (06) :813-817

[10] Effects of equal channel angular pressing temperature on deformation structures of pure Ti [J].

Kim, I ;

Kim, J ;

Shin, DH ;

Lee, CS ;

Hwang, SK .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 342 (1-2) :302-310

← 1 2 3 4 →