Microstructure and mechanical properties of low- and heavy-alloyed intermetallic alloys based on γ-TiAl + α2-Ti3Al

被引：0
作者：
V. M. Imayev
T. I. Oleneva
Sh. Kh. Mukhtarov
R. A. Gaisin
R. M. Imayev
机构：
[1] Institute for Metals Superplasticity Problems of Russian Academy of Sciences,
来源：
The Physics of Metals and Metallography | 2012年 / 113卷
关键词：
titanium aluminides; microstructure; mechanical properties;
D O I：
暂无
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学科分类号：
摘要：
The microstructure and mechanical properties of the Ti-43.7Al-3.2(Nb,Cr,Mo)-0.2B alloy in the as-cast state (after gasostatistic processing) and of the Ti-45Al-8Nb-0.2C alloy after hot extrusion at temperatures corresponding to the α + γ phase field followed by heat treatment have been studied. The extruded heavy-alloyed alloy has demonstrated significantly higher plastic/mechanical properties at room temperature with close values of the plasticity/tensile strength and long-term strength at elevated temperatures. A comparison of the results with literature data has shown the properties of the as-cast Ti-43.7Al-3.2(Nb,Cr,Mo)-0.2B to be similar to or superior to those of the best-known casting γ (TiAl) + α2 (Ti3Al) alloys.
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页码：696 / 703
页数：7
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