利用电热爆炸超高速喷涂设备,在镍基高温合金基体上喷涂了含TiB2分别为0、10和20％(质量分数,％)的NiAl复合涂层.分析结果表明涂层均由亚微米晶粒组成,涂层与基体间为冶金结合.加入TiB2显著的提高了NiAl的硬度.在1000℃的等温氧化实验结果表明,NiAl涂层的抗氧化性高于NiAl-TiB2复合涂层.
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