奥氏体不锈钢催化渗氮技术研究进展  

Research Progress on Catalytic Nitriding of Austenitic Stainless Steel

作　　者：王慧亮 Wang Huiliang(Key Laboratory,Ministry of Material anisotropy and Texture,Northeast University,Shenyang,Liaoning 110000)

机构地区：[1]东北大学材料各向异性与织构教育部重点实验室,辽宁沈阳110000

出　　处：《造纸装备及材料》2021年第1期106-108,共3页Papermaking Equipment & Materials

摘　　要：奥氏体不锈钢在生产生活的各个方面都有着十分广泛的应用,通过氮化技术提高不锈钢工件的硬度和耐磨性已经成为行业的共识。常规气体氮化和离子氮化技术已经日臻完善,单纯地改进氮化工艺对于提升氮化效果不明显,于是国内外的学者提出了催化渗氮技术,经过多年的研究和发展,这些催渗技术被不断完善,在工业上的应用也越来越频繁。基于此,文章介绍了稀土催渗、表面纳米化催渗、预氧化催渗和激光表面催渗这四种应用较多的催渗方法,总结了其催渗机理、特点以及研究进展,并简要说明了它们的发展趋势。Austenitic stainless steel has been widely used in all aspects of production and life. It has become the consensus of the industry to improve the hardness and wear resistance of stainless steel workpiece through nitriding technology. Conventional gas nitriding and ion nitriding technology has been improved day by day, and the improvement of nitriding process is becoming smaller and smaller. Therefore, scholars at home and abroad have put forward some means of catalytic nitriding. After many years of research and development, these means of infiltration have been improved and applied more and more frequently in industry. In this paper, four widely used methods, such as rare earth infiltration, surface nanocrystallization, preoxidation and laser surface infiltration, are introduced.

关 键 词：催化渗氮 稀土催渗 表面纳米化 激光催渗 

分 类 号：TG174.445[金属学及工艺—金属表面处理]