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AN Feipeng, WANG Qihong, LI Shikai, XIONG Jinhui. Microstructure of electron beam welded thick-wall Ti80 joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 96-99. DOI: 10.12073/j.hjxb.20170521
Citation: AN Feipeng, WANG Qihong, LI Shikai, XIONG Jinhui. Microstructure of electron beam welded thick-wall Ti80 joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 96-99. DOI: 10.12073/j.hjxb.20170521
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Microstructure of electron beam welded thick-wall Ti80 joint

  • Luoyang Ship Material Research Institute, Luoyang 471039, China

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  • Received Date: April 13, 2015
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  • Experiments of electron beam welding was carried out for 56 mm thick Ti80 titanium alloy. Then the microstructure of the joint was studied, the results show that microstructure of weld metal is composed of needle martensite α' phase and β phase, and it's size increased by cooling speed's rising. The microstructure of HAZ can be divided into two regions. The microstructure of HAZ near fusion zone(Ⅰzone) was consisted of primary α phase,needle α phase, needle martensite α' and transferred β containing aciculate α; The microstructure of HAZ near the base metal(Ⅱ zone) was consisted of primary α phase, secondary α phase and β phase.
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