开发含纳米组分的粉芯丝材,采用超音速电弧喷涂技术获得复合涂层,对涂层进行退火处理,结合金相、硬度、X射线衍射、扫描电镜、透射电镜等分析方法对喷涂层的组织结构和高温冲蚀性能进行表征.结果表明:喷涂过程中粉芯丝材的表皮材料和芯粉材料能相互熔解和融合形成较均匀的固溶体;涂层中硬度分布较均匀;退火处理使涂层缺陷减少,应力消除,亚稳相分解,同时结晶度提高,从而显著提高涂层硬度;退火处理后涂层耐高温冲蚀性显著提高.
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