Preparation of low-oxygen-containing Ti–48Al–2Cr–2Nb alloy powder by direct reduction of oxides

被引：0
|
作者：
GUO, Xue-yi [1 ]
DONG, Zhao-wang [1 ]
XIA, Yang [1 ]
LIU, Pei-dong [1 ]
LIU, Han-ning [1 ]
TIAN, Qing-hua [1 ]
机构：
[1] School of Metallurgy and Environment, Central South University, Changsha,410083, China
来源：
Transactions of Nonferrous Metals Society of China (English Edition) | 2022年 / 32卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Oxygen - Titanium dioxide - Alumina - Titanium alloys - Niobium oxide - Particle size;
D O I：
暂无
中图分类号：
学科分类号：
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 2, 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. © 2022 The Nonferrous Metals Society of China
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页码：1351 / 1361
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