Effect of building direction on the microstructure and tensile properties of Ti-48Al-2Cr-2Nb alloy additively manufactured by electron beam melting

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• 作者：Mitsuharu Todai^a ; Takayoshi Nakano^a ; ^{nakano@mat.eng.osaka-u.ac.jp} ; Tianqi Liu^a ; Hiroyuki Y. Yasuda^a ; Koji Hagihara^b ; Ken Cho^a ; Minoru Ueda^c ; Masao Takeyama^d
• 关键词：Additive manufacturing ; Electron beam melting (EBM) ; Titanium aluminides ; Tensile test ; Microstructure
• 刊名：Additive Manufacturing
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：13
• 期：Complete
• 页码：61-70
• 全文大小：4985 K
• 卷排序：13

文摘

Control of microstructure in a TiAl alloy was conducted by electron beam melting (82/85). An unique layered microstructure was created by the proposed EBM process (74/85). The room temperature ductility was greater than 2% under an appropriate condition (83/85). As-EBM specimens exhibited high yield strength and good ductility at 800 °C (76/85).