Phase constituent control and correlated properties of titanium aluminide intermetallic alloys through dual-wire arc additive manufacturing
作者： Jun Wang , Zengxi Pan , Dominic Cuiuri , Huijun Li
DOI: 10.1016/J.MATLET.2019.01.112
关键词:
摘要: Abstract TiAl intermetallic compounds were deposited using in-situ alloying with the dual-wire arc additive manufacturing method, and their material properties investigated. The designed different phase constituents microstructure, achieved through adjusting elemental wire feed rates according to atomic ratios of Ti: Al = 65%: 35%, 55%: 45%, 45%: 55%, respectively. Single α2-Ti3Al γ-TiAl phases obtained compositions Ti-35%Al Ti-55%Al, while Ti-45%Al resulted in composed α2-Ti3Al. Additionally, influence composition microstructure on mechanical oxidation behaviour fabricated materials studied analysed. In conclusion, alloys could be readily controlled WAAM method acceptable obtained.
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