材料科学
合金
氧气
粒径
相(物质)
冶金
微观结构
镁
化学工程
核化学
化学
有机化学
工程类
作者
Xueyi Guo,Zhaowang Dong,Yang Xia,Pei-dong LIU,Han-ning LIU,Qinghua Tian
标识
DOI:10.1016/s1003-6326(22)65858-8
摘要
A high-purity Ti–48Al–2Nb–2Cr alloy powder with an oxygen content as low as 0.0572 wt.% and a particle size of <150 μm was produced from a mixture of TiO2, Al2O3, Nb2O5, and Cr2O3 powders through reduction with magnesium and deoxidation with calcium. The phase and composition of the products were analyzed. The final product mainly included γ-TiAl and minor α2-Ti3Al phases, and Ti, Al, Cr, and Nb were homogenously distributed in the powder with a mole ratio of 49.73:43.51:2.05:1.98. The reduction and deoxidation mechanisms were investigated by thermodynamic modeling using the HSC Chemistry software and Pandat software based on the Ti alloy database.
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