Hot deformation behavior and processing maps of Ti-1300 alloy

被引：54

作者：

Zhao, H. Z. ^{[1
]}

Xiao, L. ^{[1
]}

Ge, P. ^{[2
]}

Sun, J. ^{[1
]}

Xi, Z. P. ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[2] Northwest Inst Nonferrous Met Res, Xian 710076, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 604卷

基金：

中国国家自然科学基金;

关键词：

Ti-1300; alloy; Processing maps; Hot deformation behavior; STRAIN-RATE SENSITIVITY; MICROSTRUCTURE EVOLUTION; MECHANISM; WORKING;

D O I：

10.1016/j.msea.2014.03.016

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Hot compression behavior of the Ti-1300 alloy was studied to optimize the processing parameters and ascertained the microstructural evolution mechanism. The flow stress-strain curves were measured. The deformation active energy was calculated. The kinetic equation and the processing maps are established to characterize the deformation behavior of Ti-1300 alloy in hot compression. It is revealed that the flow stress is dependent on the strain rate and the deformation temperature. The deformation active energy is 178 kJ/mol in the 13 phase region and 216 kJ/mol in the alpha+beta phase region, which are higher than that of self-diffusion active energy of 13 phase. In present range, the optimum processing parameters for hot working are 800 degrees C/0.01 s(-1) with a peak efficiency of about 0.48 and 860 C/0.01 s(-1) with a peak efficiency of about 0.50, which may be considered to be a feasible working condition. In addition, when the strain rate is higher than 1 s(-1), Ti-1300 shows flow localization, which should be avoided. (c) 2014 Elsevier B.V. All rights reserved.

引用

页码：111 / 116

页数：6

共 30 条

[1]

[Anonymous], 2011, NONLINEAR MECH CRYST

[2]

Aresenault RJ, 1998, COMPUTER SIMULATION

[3] High temperature deformation behavior of α plus β-type biomedical titanium alloy Ti-6Al-7Nb [J].

Cui, W. F. ;

Jin, Z. ;

Guo, A. H. ;

Zhou, L. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 499 (1-2) :252-256

[4]

Front H.J., 1982, Deformation Maps

[5]

Ge P., 2010, CHIN J NONFERROUS ME, V20, P1068

[6] On the measurement of strain-rate sensitivity for deformation mechanism in conventional and ultra-fine grain alloys [J].

Ghosh, A. K. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 463 (1-2) :36-40

[7] An experimental study of deformation mechanism and microstructure evolution during hot deformation of Ti-6Al-2Zr-1Mo-1V alloy [J].

He, D. ;

Zhu, J. C. ;

Lai, Z. H. ;

Liu, Y. ;

Yang, X. W. .

MATERIALS & DESIGN, 2013, 46 :38-48

[8] Aging response of coarse- and fine-grained β titanium alloys [J].

Ivasishin, OM ;

Markovsky, PE ;

Semiatin, SL ;

Ward, CH .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 405 (1-2) :296-305

[9] High temperature deformation behavior of near alpha Ti-5.6Al-4.8Sn-2.0Zr alloy [J].

Li, Miaoquan ;

Pan, Hongsi ;

Lin, Yingying ;

Luo, Jiao .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2007, 183 (01) :71-76

[10] Phase Transformation in a β-Ti Alloy with Good Balance Between High Strength and High Fracture Toughness [J].

Li Yang ;

Wei Qiang ;

Ma Chaoli ;

Zheng Lijing ;

Li Huanxi ;

Ge Peng ;

Zhao Yongqing .

CHINESE JOURNAL OF AERONAUTICS, 2009, 22 (05) :535-539

← 1 2 3 →