Oxidation Characteristics of TiAl-Mn Material Produced by Combustion Synthesis Process and Sintered by Plasma Activated Sintering.

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  • 燃焼合成法で作製しプラズマ活性化焼結したＴｉＡｌ‐Ｍｎ材の酸化特性
  • ネンショウ ゴウセイホウ デ サクセイ シ プラズマ カッセイカ ショウケツ シタ TiAl Mnザイ ノ サンカ トクセイ

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Abstract

The combustion synthesis of the material mainly composed of γ-TiAl as a promising candidate of a light-weight high-temperature structural material is carried out. Moreover, the plasma activated sintering method is adopted as a means to make high density material, and the validity of the combination of this method and the combustion synthesis process is investigated. The oxidation is deteriorated though Mn is added to improve mechanical properties of TiAl. Then, the TiAl-Mn material manufactured by the combustion synthesis process is sintered by the plasma activated sintering method. The oxidation examination is carried out, and the feature of the combustion synthesis process is investigated compared with the conventional production process. The material manufactured by the combustion synthesis process put out the result more than the equal when made by a conventional arc melting method. Moreover, without using a very high-level process such as HIP, the good result with the sample which was able to be sintered in simple plasma activated sintering method is obtained. The usage of the combustion synthesis process can be expected to extend further.

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