引用本文:孟凡军,徐滨士,马世宁,梁秀兵,朱子新.高速电弧喷涂Fe-Al/WC复合涂层在650℃下的氧化行为[J].中国表面工程,2003,(4):30~33
.Oxidation Behavior of Fe-Al/WC Composite Coatings Produced by High Velocity Arc Spraying at 650℃[J].China Surface Engineering,2003,(4):30~33
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高速电弧喷涂Fe-Al/WC复合涂层在650℃下的氧化行为
孟凡军,徐滨士,马世宁,梁秀兵,朱子新
作者单位
摘要:
采用高速电弧喷涂技术在20G钢基体上制备了Fe-Al／WC金属间化合物复合涂层，利用热重天平测试了涂层在650℃下的氧化性能。结果表明：Fe-Al／WC复合涂层的氧化动力学曲线近似呈现出对数规律；涂层的氧化物以Al2O3、Fe2O3、Fe3O4和FeO等为主，且其分布不均匀；涂层表面优先形成具有保护性的Al2O3膜，阻止了涂层的进一步氧化。
关键词:  高温氧化 高速电弧喷涂 Fe-Al金属间化合物 复合涂层
DOI：
分类号:TG174.442
基金项目:国家自然科学基金资助项目(50005024)
Oxidation Behavior of Fe-Al/WC Composite Coatings Produced by High Velocity Arc Spraying at 650℃
MENG Fan-jun  XU Bin-shi  MA Shi-ning  LIANG Xiu-bing  ZHU Zi-xin
Abstract:
The Fe-Al/WC intermetallic composite coatings were prepared by high velocity arc spraying(HVAS) technology on 20G steel and the oxidation performance of Fe-Al/WC composite coatings was studied by means of a thermo-gravimetric analyzer. The results demonstrated that the kinetics curve of oxidation approximately follows the logarithmic law. The composition of oxidized coating is mainly composed of Al2O3, Fe2O3, Fe3O4 and FeO. These phases show an uneven distribution. The preliminarily formed Al2O3 film can protect the coatings from further oxidation.
Key words:  high temperature oxidation,HVAS,Fe-Al intermetallic,composite coating
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