研究了TiAl合金双态组织的显微组织参数对力学性能的影响,通过对Ti-46.5Al-2Cr-1.5Nb-1V金属间化合物进行特定的热处理;分别获得了具有相同晶粒大小、不同片层晶粒体积分数,以及相同片层晶粒体积分数、不同晶粒大小显微组织的两个系列的双态复相TiAl合金.研究结果表明:对于双态复相组织,晶粒尺寸由预备热处理过程中的退火时间来控制;而片层晶粒体积分数则通过后续热处理温度来控制,不同片层晶粒含量双态组织的晶粒尺度可以通过后续热处理时间来控制.
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