引用本文:李微,黄煌,黄伟颖,陈辉涛,肖国源,陈荐,何建军,任延杰,张圣德.钢表面粉末包埋渗铝的表面状态及元素扩散机理研究进展∗[J].中国表面工程,2021,34(3):25~39
Li Wei,Huang Huang,Huang Weiying,Chen Huitao,Xiao Guoyuan,Chen Jian,He Jianjun,Ren Yanjie,Zhang Shengde.Research Progress on Surface State and Element Diffusion Mechanism of Steel with Surface Coating Prepared by Pack Aluminizing Method[J].China Surface Engineering,2021,34(3):25~39
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钢表面粉末包埋渗铝的表面状态及元素扩散机理研究进展∗
李微1,2, 黄煌1,2, 黄伟颖1,2, 陈辉涛1,2, 肖国源1,2, 陈荐1,2, 何建军1,2, 任延杰1,2, 张圣德3
1.长沙理工大学能源与动力工程学院 长沙 410114;2.清洁能源与智能电网湖南省 201 1.协同创新中心 长沙 410114;3.日本电力中央研究所 东京 240-019 6.日本
摘要:
钢铁作为基础性结构材料,应用在国民经济的各个领域。 由于钢材在工程应用中会发生氧化、腐蚀,采用粉末包埋渗铝对钢材进行表面改性可提高其抗氧化性能和腐蚀性能。 目前为止,关于渗铝工艺参数对渗层微观组织、表面状态和元素扩散机理的研究,比较零散,缺乏系统总结。 综述渗铝工艺参数对粉末包埋渗铝钢的微观组织、表面状态及其性能的影响,分析渗铝工艺参数与渗层微观组织的关联;概括渗铝工艺参数对 Fe-Al 元素扩散系数和扩散激活能的影响规律,分析 Fe-Al 元素扩散机制;总结渗铝层预测模型,对粉末包埋渗铝钢的研究趋势进行展望。
关键词:  粉末包埋渗铝  微观组织  表面状态  元素扩散  渗铝预测模型
DOI：10.11933/j.issn.1007-9289.20210207001
分类号:TG156;TB114
基金项目:国家自然科学基金(51675058,52075048)、湖南省创新计划(2018RS3073)、湖南省教育厅科学研究重点项目(18A143)和长沙理工大学双一流科学研究国际合作拓展项目(2019IC15)资助项目
Research Progress on Surface State and Element Diffusion Mechanism of Steel with Surface Coating Prepared by Pack Aluminizing Method
Li Wei1,2, Huang Huang1,2, Huang Weiying1,2, Chen Huitao1,2, Xiao Guoyuan1,2, Chen Jian1,2, He Jianjun1,2, Ren Yanjie1,2, Zhang Shengde3
1.School of Energy and Power Engineering, Changsha University of Science & Technology, Changsha 410114 , China;2.Hunan Province 201 1.Collaborative Innovation Center of Clean Energy and Smart Grid, Changsha 410114 , China;3.Japan Electric Power Central Research Institute, Tokyo 240-0196,Janpan
Abstract:
As fundamental structural materials, steels are widely applied in the national economical fields. Since the oxidation and corrosion occur at steels in engineering applications frequently, surface modification on steel through pack aluminizing can contribute to improve their oxidation resistance and corrosion performance. So far, the effect of aluminizing parameters on the microstructure of coatings, surface integrity and mechanisms for element diffusion is relatively dispersed, which is also deficient and need to be sum up systematically. Accordingly, the impact of aluminizing parameters on the microstructure, surface state and properties of pack aluminized steel was reviewed, and the relationship between aluminizing process parameters and microstructure of the layer was analyzed. In addition, the influence rules of aluminizing process parameters on diffusion coefficient and diffusion activation energy of Fe-Al element were summarized. Also, element diffusion mechanism of Fe-Al and the diffusion mechanism of Fe-Al element was analyzed. The prediction models of aluminized layer is summarized and the tendency of research for aluminized steel prepared via pack cementation has been forecasted.
Key words:  pack aluminizingl  microstructure  surface state  element diffusion  prediction model of aluminizing
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