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材料导报  2021, Vol. 35 Issue (6): 6161-6166    https://doi.org/10.11896/cldb.19120214
  金属与金属基复合材料 |
奥氏体不锈钢渗氮&物理气相沉积复合改性层的组织及性能
陈志林1, 曹驰1,2, 杨瑞成1,2, 牟鑫斌1, 陈碧碧1, 胡秋晨2
1 兰州理工大学温州泵阀工程研究院,温州 325105
2 兰州理工大学材料科学与工程学院,兰州 730050
Microstructure and Properties of Composite Modified Layer of Austenitic Stainless Steel Obtained by Nitriding & Physical Vapor Deposition
CHEN Zhilin1, CAO Chi1,2, YANG Ruicheng1,2, MU Xinbin1, CHEN Bibi1, HU Qiuchen2
1 Wenzhou Pump and Valve Engineering Research Institute of Lanzhou University of Technology, Wenzhou 325105, China
2 Institute of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
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摘要 通过辉光离子渗扩技术对316L奥氏体不锈钢进行了不同温度下的离子渗氮处理,之后采用物理气相沉积技术在渗氮层外表面制备一层CrN涂层,检测不同温度下离子渗氮+物理气相沉积复合涂层的结合力、硬度、耐磨性和耐蚀性,并对其显微组织和物相进行了观测与分析。结果表明:奥氏体不锈钢不同温度渗氮+物理气相沉积复合改性层的组织随渗氮温度的升高从S相(内层)+CrN涂层(外层)转变为不同程度硬质相析出层(内层)+CrN涂层(外层),不同类型的渗氮层与CrN涂层均有良好的结合力;不论是S相层还是硬质相析出层,经过PVD处理后均能在一定程度上提高渗层的表面硬度、耐磨性和耐蚀性,其中耐蚀性随着渗氮温度的升高逐渐变差,硬度和耐磨性随渗氮温度的升高而逐渐提升。
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陈志林
曹驰
杨瑞成
牟鑫斌
陈碧碧
胡秋晨
关键词:  奥氏体不锈钢  复合改性  S相  CrN涂层    
Abstract: Austenitic stainless steel 316L was ion nitrided by glow plasma penetration and diffusion technique at different temperatures, subsequently, CrN coating was deposited on top of the nitrided layer by physical vapor deposition technology. The adhesion strength, hardness, tribological property and corrosion resistance of the duplex coating were tested. The microstructure and phase constituents were also examined. It has been found that, with the increase of temperature, the microconstituent of the duplex coating gained by plasma nitriding at different temperatures and PVD transfers from S-phase (inner layer)+CrN coating (outer layer) to hard phase precipitated layer of different degree (inner layer)+CrN coa-ting (outer layer). The adhesion strength of different kinds of nitrided layer with CrN coating was good. After PVD treatment, the surface hardness, abrasion resistance and corrosion resistance of nitrided layer was improved to some extent whether it was S-phase or hard phase precipitated layer. With the increase of nitriding temperature, the corrosion resistance deteriorated, the hardness and abrasion resistance were elevated.
Key words:  austenitic stainless steel    composite modification    S-phase    CrN coating
               出版日期:  2021-03-25      发布日期:  2021-03-23
ZTFLH:  TG156.82  
  TG178  
基金资助: 浙江省重点研发项目(2019C01090);温州市基础研究项目(G20180005)
通讯作者:  czl333@qq.com   
作者简介:  陈志林,兰州理工大学温州泵阀工程研究院,工程师。2012年6月毕业于兰州理工大学,获工学硕士学位,研究方向为材料表面改性。
曹驰,兰州理工大学,硕士研究生导师,2009年毕业于兰州理工大学,获博士学位。主要研究方向为金属材料表面改性、材料成形。
引用本文:    
陈志林, 曹驰, 杨瑞成, 牟鑫斌, 陈碧碧, 胡秋晨. 奥氏体不锈钢渗氮&物理气相沉积复合改性层的组织及性能[J]. 材料导报, 2021, 35(6): 6161-6166.
CHEN Zhilin, CAO Chi, YANG Ruicheng, MU Xinbin, CHEN Bibi, HU Qiuchen. Microstructure and Properties of Composite Modified Layer of Austenitic Stainless Steel Obtained by Nitriding & Physical Vapor Deposition. Materials Reports, 2021, 35(6): 6161-6166.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.19120214  或          http://www.mater-rep.com/CN/Y2021/V35/I6/6161
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