Deformation Behavior and Microstructure Evolution of TA15 Titanium Alloy after Isothermal near β Deformation

被引：0
|
作者：
Gao Yang [1 ]
Sun Zhichao [1 ]
Yang He [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2013年 / 42卷 / 05期
关键词：
TA15 titanium alloy; isothermal near beta deformation; deformation behavior; equiaxed alpha; empirical model; MECHANICAL-PROPERTIES; FORGING PROCESS; PARAMETERS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The deformation behavior and microstructure evolution after isothermal near beta deformation of TA15 titanium alloy with initially equiaxed microstructure were investigated by compression tests. The effects of deformation temperature, strain and strain rate on the deformation behavior and microstructure transformation were quantitatively characterized through metallographs analysis. Results show that dynamic recrystallization is suppressed and dynamic recovery is promoted with the deformation temperature increasing or the strain rate decreasing. Otherwise dynamic recrystallization is promoted and dynamic recovery is suppressed with the deformation temperature decreasing or the strain rate increasing. Deformation temperature is the primary factor influencing the volume fraction, the size and the aspect of equiaxed alpha. Increasing strain rate has little effect on the refinement of equiaxed alpha. The empirical model was developed to describe the relationship between deformation temperature and the volume fraction as well as the size of equiaxed alpha in the near beta temperature range. The research results can provide a guide for process optimization and control of isothermal near beta deformation of TA15 titanium alloy.
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页码：951 / 956
页数：6
相关论文
共 12 条
  • [1] Delai Ouyang, 2010, RARE METAL MAT ENG, V39, P1162
  • [2] Deformation behavior and microstructure evolution in multistage hot working of TA15 titanium alloy: on the role of recrystallization
    Fan, X. G.
    Yang, H.
    Gao, P. F.
    [J]. JOURNAL OF MATERIALS SCIENCE, 2011, 46 (18) : 6018 - 6028
  • [3] Dynamic recovery and recrystallization in titanium alloys by hot deformation
    Furuhara, T.
    Poorganji, B.
    Abe, H.
    Maki, T.
    [J]. JOM, 2007, 59 (01) : 64 - 67
  • [4] The Effect of Isothermal Forging Process Parameters on the Microstructure and the Properties of TA15 Near a Titanium Alloy
    Guo, Hongzhen
    Zhao, Zhanglong
    Wang, Bin
    Yao, Zekun
    Liu, Yingying
    [J]. ADVANCED MATERIALS AND PROCESSING, 2007, 26-28 : 367 - +
  • [5] Influence of processing on microstructure and mechanical properties of (α+β) titanium alloys
    Lutjering, G
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 243 (1-2): : 32 - 45
  • [6] Microstructure evolution of different loading zones during TA15 alloy multi-cycle isothermal local forging
    Sun, Zhichao
    Liu, Lei
    Yang, He
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (15): : 5112 - 5121
  • [7] Sun Zhichao, 2010, MAT SCI ENG A-STRUCT, V527, P63
  • [8] Zhang WF, 2009, RARE METAL MAT ENG, V38, P972
  • [9] Microstructure evolution of TA15 titanium alloy subjected to equal channel angular pressing and subsequent annealing at various temperatures
    Zhao, Yan
    Guo, Hongzhen
    Shi, Zhifeng
    Yao, Zekun
    Zhang, Yongqiang
    [J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2011, 211 (08) : 1364 - 1371
  • [10] An investigation of a new near-beta forging process for titanium alloys and its application in aviation components
    Zhou, YG
    Zeng, WD
    Yu, HQ
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 393 (1-2): : 204 - 212
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