| 高速电弧喷涂Fe-Al/WC复合涂层在800℃下的氧化行为 |
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| 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800℃下的氧化行为[J].金属热处理,2003,28(12):18-21. |
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| 作者姓名： | 孟凡军 徐滨士 马世宁 梁秀兵 朱子新 |
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| 作者单位： | 装甲兵工程学院,装备再制造技术国防科技重点实验室,北京,100072 |
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| 基金项目： | 国家自然科学基金项目 (5 0 0 0 5 0 2 4 ) |
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| 摘 要： | 采用高速电弧喷涂技术 (HVAS)在 2 0G钢基体上制备了Fe Al/WC金属间化合物复合涂层 ,测试了涂层在 80 0℃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呈现出近似对数规律 ,5h后的氧化速率低于 2 0G钢 ;涂层的氧化物以Al2 O3、Fe2 O3、Fe3O4 和FeO为主 ,且分布不均匀 ;涂层表面优先形成具有保护性的Al2 O3膜 ,阻止了涂层的进一步氧化。
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| 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 |
| 文章编号： | 0254-6051(2003)12-0018-04 |
| 修稿时间： | 2003年5月7日 |
Oxidation Behavior of High Velocity Arc Spraying Fe-Al/WC Composite Coatings at 800℃ |
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| MENG Fan-jun,XU Bin-shi,MA Shi-ning,LIANG Xiu-bing,ZHU Zi-xin.Oxidation Behavior of High Velocity Arc Spraying Fe-Al/WC Composite Coatings at 800℃[J].Heat Treatment of Metals,2003,28(12):18-21. |
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| Authors: | MENG Fan-jun XU Bin-shi MA Shi-ning LIANG Xiu-bing ZHU Zi-xin |
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| Abstract: | The Fe-Al/WC intermetallic composite coatings have been prepared by high velocity arc spraying (HVAS) technology on 20G steel,and the oxidation performance of the coatings has been studied.The results show that the kinetics curve of oxidation of Fe-Al/WC composite coatings approximately follows the logarithmic law,and oxidation velocity of coatings is less than that of 20G steel after oxidizing for 5h.The composition of the oxidized coating is mainly composed of Al_2O_3,Fe_2O_3,Fe_3O_4 and FeO which are not uniformly distributed.The protective film of Al_2O_3 phase firstly forms and then prevents further oxidation of the coatings. |
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| Keywords: | high temperature oxidation high velocity arc spraying (HVAS) Fe-Al intermetallic composite (coating) |
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