| CeO2对镍基金属陶瓷复合层组织和耐腐蚀性能的影响 |
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| 引用本文： | 赵涛,蔡珣,王顺兴,郑世安. CeO2对镍基金属陶瓷复合层组织和耐腐蚀性能的影响[J]. 金属热处理, 2001, 0(2): 1-3 |
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| 作者姓名： | 赵涛 蔡珣 王顺兴 郑世安 |
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| 作者单位： | 1. 上海交通大学
2. 洛阳工学院材料工程系, |
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| 摘 要： | 利用5kW CO2激光器在5Cr21Mn9Ni4N不锈钢基体表面成功熔覆了含不同CeO2量的镍基金属陶瓷复合层。研究了稀土氧化物CeO2对激光熔覆金属陶瓷复合层显微组织形态和耐腐蚀性能的影响，发现稀土氧化物CeO2能加速碳化钨颗粒的溶解，促使钨与铬形成金属间化合物；激光熔覆镍基金属陶瓷复合层的耐硫酸腐蚀能力显著翁于1Cr18Ni9Ti不锈钢；且含0．5％CeO2（质量分数）的激光熔覆层的耐腐蚀能力比含1．5％CeO2（质量分数）和不含CeO2的激光熔覆层都要强。
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| 关 键 词： | 二氧化铈 激光熔霞 耐蚀性 组织 镍基金属陶瓷复合层 |
| 文章编号： | 0254-6051（2001）02-0001-03 |
| 修稿时间： | 2000-03-30 |
Effects of CeO2 |
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| ZHAO Tao,CAI Xun,WANG Shun-xing,ZHENG Shi-an. Effects of CeO2[J]. Heat Treatment of Metals, 2001, 0(2): 1-3 |
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| Authors: | ZHAO Tao CAI Xun WANG Shun-xing ZHENG Shi-an |
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| Abstract: | The Ni-based metal-ceramic coatings on the surface of 5Cr21Mn9Ni4N stainless steel were clad by a 5kW CO2 laser．The effects of CeO2 on structure and corrosion resistance of laser clad Ni-based metal-ceramic coatings were investigated．The studies revealed that CeO2 could accelerate the dissolution of tungsten carbide particles and made the formation of Cr-W intermetallic compound．Compared with steel 1Cr18Ni9Ti，the corrosion resistance of the laser clad Ni-based metal-ceramic coatings was raised remarkably and the corrosion resistance of the coatings with 0.5wt％ CeO2 was better than that of the coatings with 1.5wt％ CeO2 and without CeO2． |
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