Influence of Electroshocking Treatment on Microstructure and Mechanical Properties of Ti-6.5Al-3.5Mo-1.5Zr-0.3SiThin-Wall Specimen Manufactured by Laser Melting Deposition

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外文摘要：In order to improve the properties of titanium alloys manufactured by laser melting deposition(LMD),the electroshock-ing treatment(EST)was proposed in this work.The effects of EST on microstructure and mechanical properties of LMD Ti-6.5Al-3.5Mo-1.5Zr-0.3Si were investigated.The results showed that the width of the heat affected band decreased and disappeared under the thermal and athermal effects of EST,resulting in the uniform microstructure.In the microstructure,the α laths became coarser gradually,and the quantity of α/β interface was reduced.The reduction of the quantity of α/βinterface leads to make less resistant to dislocation,resulting in the reduction in hardness and strength.The discontinuous grain boundary α phase and nucleation α colony near grain boundary inhibited the crack propagation and improved the ductility.Summary,EST can manipulate the microstructure and improve the mechanical properties of LMD titanium alloys.

外文关键词：

Electroshocking treatment(EST)Laser melting deposition(LMD)Titanium alloyMicrostructureMechanical properties

作者：

Yan Wen、Xuan Sun、Jian Zhou、Bingliang Liu、Haojie Guo、Yuxin Li、Fei Yin、Liqiang Wang、Lechun Xie、Lin Hua

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作者单位：

Hubei Key Laboratory of Advanced Technology for Automotive Components,Wuhan University of Technology,Wuhan 430070,China

Hubei Collaborative Innovation Center for Automotive Components Technology,Wuhan 430070,China

Hubei Longzhong Laboratory,Xiangyang 441000,China

Shanghai Aircraft Manufacturing Co.,Ltd.,Commercial Aircraft Corporation of China,Ltd.,Shanghai 201324,China

State Key Laboratory of Metal Matrix Composites,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China

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基金：

国家自然科学基金国家自然科学基金Innovation Funding Project of National Engineering and Research Center for Commercial Aircraft Manufacturing国家自然科学基金重大项目湖北省自然科学基金Knowledge Innovation Program of Wuhan-Basic ResearchApplication Foundation Frontier Project of Wuhanthe"Chu Tian Scholar"project of Hubei ProvinceOverseas Expertise Introduction Project for Discipline InnovationInnovative Research Team Development Program of Ministry of Education of China

项目编号：

5197544152271135COM AC-SFGS-2022-1871922661022022CFB49220220108010101742020010601012171CTXZ2017-05B17034IRT_17R83

出版年：

2024

DOI：

10.1007/s40195-023-01576-x

金属学报(英文版)

中国金属学会

金属学报(英文版)

CSTPCD

影响因子：0.77

ISSN：1006-7191

年,卷(期)：2024.37(1)

参考文献量44