利用激光熔覆技术在45钢表面制备出不同成分配制的原位自生镍基金属陶瓷复合涂层,涂层表面质量良好.涂层在连续变温条件下高温氧化动力学分析表明,涂层成分不同时,稳定氧化阶段持续时间及剧烈氧化速度均有一定差异.此外,不同成分涂层高温氧化后,氧化层表面形貌、质量及氧化物尺寸、分布均有差别.总体来看,激光熔覆表面处理大大提高了材料表面的高温氧化抗力.
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