| Y2O3改性渗铝工艺及渗层抗高温氧化性研究 |
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| 引用本文： | 杨柳松,文九巴,朱利敏,李全安.Y2O3改性渗铝工艺及渗层抗高温氧化性研究[J].热加工工艺,2007,36(2):39-40,43. |
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| 作者姓名： | 杨柳松 文九巴 朱利敏 李全安 |
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| 作者单位： | 河南科技大学,材料科学与工程学院,河南,洛阳,471003 |
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| 基金项目： | 河南省教育厅科技攻关项目 |
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| 摘 要： | 采用在20钢上复合电镀Ni-Y2O3层后再扩散渗铝的方法，得到了Y2O3改性的渗Al复合层，并对渗层氧化性能进行了试验研究。SEM及EDXA观察结果表明，经Y2O3改性的渗层，Y2O3颗粒均匀分布于渗层中，且表面铝含量达到30．65％。不连续氧化和循环氧化试验的结果表明，其抗高温氧化性能明显提高，分别为纯铝渗层的2．5倍和3倍。
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| 关 键 词： | 改性渗铝 抗高温氧化性 |
| 文章编号： | 1001-3814（2007）02-0039-02 |
| 修稿时间： | 2006-09-18 |
Study on High Temperature Oxidation Resistance of Y2O3-Modified Aluminizing Coating on 20 Steel |
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| YANG Liu-song,WEN Jiu-ba,ZHU Li-min,LI Quan-an.Study on High Temperature Oxidation Resistance of Y2O3-Modified Aluminizing Coating on 20 Steel[J].Hot Working Technology,2007,36(2):39-40,43. |
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| Authors: | YANG Liu-song WEN Jiu-ba ZHU Li-min LI Quan-an |
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| Affiliation: | School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China |
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| Abstract: | A Y_2O_3-modified aluminizing coating was formed on 20 steel by a process of two steps:the first is composite electrodeposition of Ni and Y_2O_3 particles,followed by the second of aluminizing on the Ni-Y_2O_3 composite using pack cementation method,and the oxidation resistance of the coating was studied.The results of SEM and EDXA show that the grain of Y_2O_3 is symmetrical distributed in the coating via Y_2O_3 modified,and the content of Al on the surface is up to 30.65%. Meanwhile,the high temperature oxidation resistance of discontinuous oxidation and cyclical oxidation is improved markedly, which is 2.5 and 3 times than the sample aluminized only,respectively. |
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| Keywords: | Y2O3 |
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