The effect of microstructure on the mechanical properties of TC4-DT titanium alloys

被引：127
作者：
Guo, Ping [1 ,2 ]
Zhao, Yongqing [1 ,2 ]
Zeng, Weidong [1 ]
Hong, Quan [2 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Sch Mat Sci & Engn, Xian 710072, Peoples R China
[2] NW Inst Nonferrous Met Res, Xian 710016, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 563卷
关键词：
TC4-DT titanium alloy; Microstructure; Mechanical properties; Fracture toughness; DEFORMATION; FATIGUE;
D O I：
10.1016/j.msea.2012.11.033
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper presents the results on the microstructure and mechanical properties of damage tolerance TC4-DT titanium alloy after different heat treatments. The influence of volume fraction of primary alpha-phase and the morphology of lamellar microstructure on the tensile properties and fracture toughness of the alloy was studied. Static tensile, fracture toughness tests and microstructure investigations were performed. The result shows that heat-treatment can adjust the microstructure feature, and cooling rate and aging conditions have remarkable effect on the microstructure parameters, such as the content of equiaxed alpha, dimension of beta grains and thickness of lamellar alpha, which has a significant effect on the properties of the alloys tested. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：106 / 111
页数：6
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