K-2302 TiNi形状記憶合金ファイバー強化AZ31マグネシウム合金マトリックスコンポジットの通電パルス圧接法(PCHP)による作製(S13-1 多機能・複合機能化への材料協調設計(1))(S13 多機能・複合機能化への材料協調設計)

概要

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Titanium-nickel shape memory alloy (SMA) fiber reinforced AZ31 magnesium alloy matrix composite was fabricated by Pulsed Current Hot Pressing (PCHP) process of Mg alloy plates with 20 vol. % of the TiNi SMA fiber, and its microstructure and mechanical properties were examined. The Mg alloy plates with the TiNi fiber was readily consolidated into composite at a load of 32MPa, at a heating ratio of 1.7ks, at a holding temperature of 773k and for a holding time of 300s. Interfacial reaction occurred insubstantially at the boundary between Mg alloy matrix and TiNi fiber and the homogeneous interface was not formed. The tensile yield stresses of the composite deformed in tension at 373K and at 423K were higher by about 68MPa and 87MPa than that at 293K.
一般社団法人日本機械学会の論文
2001-08-22