将含氮Nb-Mo-V微合金耐火钢在1200℃固溶0.5h后淬火,在650℃回火10 h,用透射电子显微镜(TEM)和原子探针层析技术(APT)研究氮化铝(AlN)/基体界面处碳化物的析出.结果表明,方形六方结构AlN的某一个表面是密排面(0001),面心立方结构的钒钼复合碳化物(V,Mo)C容易在AlN(0001)密排面/基体界面处析出并沿其自身〈111)方向长大,并与AlN共格.(V,Mo)C与AlN之间的晶体学关系为:[110](V,Mo)c//[11 20-]AIN,(111)(V,Mo)c//(0001)AIN.
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