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Influence of high-temperature annealing on structure of titanium aluminide materials obtained by combustion and high-temperature shear deformation
Intermetallics ( IF 4.3 ) Pub Date : 2021-09-21 , DOI: 10.1016/j.intermet.2021.107313
A.D. Bazhina 1 , P.M. Bazhin 1 , A.P. Chizhikov 1 , A.S. Konstantinov 1 , A.M. Stolin 1
Affiliation  

A compact material based on initial powders of titanium and aluminum (porosity <1%) was obtained by unrestricted SHS-compression. This method combines combustion processes in the mode of self-propagating high-temperature synthesis (combustion temperature – 1460 °C, combustion front propagation – 3.7 mm/s) and high-temperature shear deformation. The obtained material structure and phase composition were studied. The high-temperature shear deformation was shown to lead to textured structure of the material which consisted of alternating intermetallic phases in the following sequence: α2-Ti3Al, γ-TiAl, TiAl2 и TiAl3. Influence of high-temperature annealing at T = 1000 °C during 0.5–4 h on the material structure and phase composition was studied.



中文翻译:

高温退火对燃烧高温剪切变形铝化钛材料结构的影响

通过无限制的 SHS 压缩获得基于钛和铝初始粉末(孔隙率 <1%)的致密材料。该方法以自蔓延高温合成模式(燃烧温度 - 1460 °C,燃烧前沿传播 - 3.7 mm/s)和高温剪切变形模式结合燃烧过程。对所得材料结构和相组成进行了研究。高温剪切变形导致材料的织构结构,该结构由按以下顺序交替的金属间相组成:α 2 -Ti 3 Al、γ-TiAl、TiAl 2和 TiAl 3. 研究了在 T = 1000 °C 下高温退火 0.5-4 小时对材料结构和相组成的影响。

更新日期:2021-09-22
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