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Superplastic formability of Ti-6Al-4V butt-welded plate by laser beam welding 被引量:5

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摘要 The superplasticity of Ti-6Al-4V butt-welded plates by laser beam welding(LBW)was studied in virtue of hot tensile tests and superplastic bulging tests.Furthermore,microstructural evolution of weld metal upon superplastic forming was systematically analyzed via metallographical tests and scanning electron microscope(SEM).The relation between the microstructure of weld metal and its superplastic ability was discussed.The experimental results show that Ti-6Al-4V butt-welded plates by LBW possess superplasticity.The maximum elongation is up to 154%and the maximum bulge height can be up to 1.81 times the internal radius of the female die.There is an optimum value of the bulge height for bulging gas pressure.
作者 WANG Gang ZHANG Wen-cong ZHANG Gong-lei XU Zhi-liang 王刚;张文丛;张功磊;徐志良(School of Materials Science and Engineering,Harbin Institute of Technology at Weihai,Weihai 264209,China)
出处 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2009年第S02期429-433,共5页 中国有色金属学报(英文版)
基金 Project(50775052)supported by the National Natural Science Foundation of China。
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