Effect of near-isothermal forging temperature on the microstructure and mechanical properties of near α high temperature titanium alloy - 文章详情页

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EI Scopus

摘要：

The　effect　of　near-isothermal　forging　temperature　on　the　microstructure　and　mechanical　properties　of　Ti-Al-Sn-Zr-Mo-Nb-W-Si-Er　near　α　high　temperature　titanium　alloy　was　investigated　by　near-isothermal　forging　at　the　strain　rate　of　0.01s−1　and　80%　deformation.　The　results　indicated　that　near-isothermal　forging　temperature　of　1050°C　is　relatively　low.　After　forging　at　1050°C　the　grain　growth　is　not　obvious　and　original　β　grain　as　well　as　intragranular　lamellar　are　fine.　By　comparison,　the　alloy　forged　at　1120°C　possessed　typical　basket　weave　microstructure.　With　the　increase　of　near-isothermal　forging　temperature,　the　tensile　strength　and　plasticity　of　the　alloy　decrease.　Excellent　comprehensive　mechanical　properties　could　be　achieved　in　the　alloy　after　forging　at　temperature　1050°C.　©　2017　Trans　Tech　Publications,　Switzerland.

关键词：

Forging Grain growth Isotherms Mechanical properties Microstructure Strain rate Tensile strength Titanium alloys

作者机构：

[ 1 ] [Li, Tao]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Chai, Li Hua]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Shi, Shao Hui]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Xiang, Zhi Lei]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Cui, Yong Shuang]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Shi, Guo Dong]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Chen, Zi Yong]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

陈子勇
[chen, zi yong]college of materials science and engineering, beijing university of technology, beijing; 100124, china

电子邮件地址：

czy@bjut.edu.cn

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