【摘要】 从变诱导有序显微结构变化的角度，说明了合金元素铬和钼对Fe3Al基合金力学性能和显微组织的影响．结果表明：合金元素铬和钼主要固溶于Fe3Al基合金中，铬的主要作用是固溶软化，促进形变诱导无序化；钼主要起因溶强化作用，阻碍形变诱导无序化，有利于蠕变回复诱导有序化．更多还原

【Abstract】 Effects of Cr and Mo on machanical properties and micro-structure of Fe₃Al based alloys were investigated from the point of the strain-induced microstructural changes in Fe₃Al-based alloys during room temperature deformation and high temperature creep. It is found that both Cr and Mo soluted into the matrix of Fe3Al-based alloys. TheAddition of Cr can accelerate strain-induced disordering resulting in an effect of solution softening. The addition of Mo is beneficial to creep-induced rreorderingand to increase the recrys tallization temperature, resulting in solution sirengthening.更多还原