对Ti3AlC2块体材料在1050 ～1450℃进行真空热处理,分析了该材料在热处理前后的物相组成和显微组织形貌.结果表明:经1050℃热处理后出现了新相Al3Ti到1250℃时该相消失;从1050 ～1250℃随温度升高Ti3AlC2含量逐渐增加,TiCx含量逐渐减少;经1250℃热处理之后,材料密度增加到4.01 g/cm3,Ti3AlC2含量增加到94.2％,Ti3AlC2晶粒长15 ～ 20 μm、厚约2 μm;从1250～ 1450℃随温度升高Ti3AlC2含量逐渐减少,TiCx含量逐渐增加,经1450℃热处理之后Ti3 AlC2含量减为74.8％.因此,1250℃为Ti3AlC2块体材料最佳热处理温度.
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