摘要:
对2Cr13马氏体不锈钢分别进行常规直流离子渗氮和活性屏离子渗氮对比试验。渗氮温度均为440℃，渗氮时间为8h。采用金相显微镜、扫描电镜、x射线衍射仪、表面粗糙度仪、显微硬度仪和电化学工作站等设备分析表征两种渗氮样品。实验结果表明：活性屏离子渗氮在避免了传统离子渗氮缺点的同时，取得了与其相同的硬化效果。可在马氏体不锈钢表面制备一定厚度的均匀致密的白亮层，其相结构是以ε—Fe2-3N相为主，并伴随少量的αN相。马氏体不锈钢活性屏渗氮处理不仅可以提高表面硬度，而且获得了良好的耐蚀性能。
其他研究成果：
代表著作、论文、专利
一、期刊论文： 1)MinyiZhang, JinhuaChen, YangLi*, GuangyanChen, YongyongHe*, JianbinLuo, Study on microstructural and tribological properties of sulphonitrocarburized layers diffused by hollow cathode discharging, Vacuum, 174(2020) 109188. 2)Yang Li, Luo Jianbin, Zhang Shangzhou*, Jianxun Qiu, Yongyong He*. Microstructure, mechanical and adhesive properties of CrN/CrTiAlSiN/WCrTiAlN multilayer coatings deposited on nitrided AISI 4140 steel, Materials Characterization 147 (2019) 353–364. 3)Li Y, Zhang S Z, Qiu J X , et al. Effect of Electric Potentials on Microstructure, Corrosion and Wear Characteristic of the Nitrided Layer Prepared on 2Cr13 Stainless Steel by Plasma Nitriding. Acta Metallurgica Sinica (English Letters) 32 (2019) 733–745 4)Li Y*, Ye Q.W, Zhang S. Z.*, He Y.Y. et al. Microstructure, adhesion and tribological properties of CrN/CrTiAlSiN/WCrTiAlN multilayer coatings deposited on nitrocarburized AISI 4140 steel, Surface & Coatings Technology 362 (2019) 27-34. 5)Shao, Z., Liu, H., He, X., Li Y.*, Zhang S.Z.*,et al. Microstructure and finite element analysis of hot continuous rolling of doped tungsten rod. International Journal of Minerals, Metallurgy and Materials 26, (2019) 369–376. 6)Li Y.*, He Y.Y.*, Zhang S.Z., et al. Plasma Nitriding of AISI 304 Stainless Steel in Cathodic and Floating Electric Potential: Influence on Morphology, Chemical Characteristics and Tribological Behavior. Journal of Materials Engineering & Performance, 2018, 27(3):948-960. 7)Y. Li*, Yongyong He, Jianxun Qiu, Enhancement of Pitting Corrosion Resistance of Austenitic Stainless Steel Through Deposition of Amorphous/Nanocrystalline Oxy-nitrided Phases by Active Screen Plasma Treatment, Materials Research. 2018; 21(6): e20170697 8)Li Y.*, He Y.Y.*, Zhang S.Z., et al. Microstructure and corrosion resistance of nitrogen-rich surface layers on AISI 304 stainless steel by rapid nitriding in a hollow cathode discharge. Applied Physics A, 2018, 124(1):65-74. 9)Li Y.*, He Y.Y.*, Xiu J.J., et al. Wear and corrosion properties of AISI 420 martensitic stainless steel treated by active screen plasma nitriding. Surface & Coatings Technology, 2017, 329: 184–192. 10)Li Y.*, He Y.Y.*, Zhang S.Z., et al. Microstructures and tribological behaviour of oxynitrided austenitic stainless steel. Vacuum, 2017, 146:1-7. 11)Li Y.*, Wang Z., Wang L., Surface properties of nitrided layer on AISI 316L austenitic stainless steel produced by high temperature plasma nitriding in short time, Applied Surface Science, 2014, 298: 243-250. 12)Li Y.*, Zhang S.Z., He Y.Y., Zhang L., Characteristics of the nitrided layer formed on AISI 304 austenitic stainless steel by high temperature nitriding assisted hollow cathode discharge, Materials & Design, 2014, 64: 527-534. 13)Li Y.*, Xu H.Z., Zhu F., Wang L., Low temperature anodic nitriding of AISI 304 austenitic stainless steel, Materials Letters, 2014, 128: 231-234.
二、已授权发明专利： 1.李杨，张尚洲，叶倩文等，一种超硬W-Cr-Al-Ti-N纳米梯度多层膜及其制备方法，发明专利； 2.何永勇，李杨等，一种金属材料表面渗氮沉积复合减摩耐磨改性层制备方法，发明专利； 3.何永勇，李杨等，基于空心阴极离子源的奥氏体不锈钢氮化处理系统及方法，发明专利； 4.何永勇，李杨等，Ti/TiN/TiAlSiN/TiAlTiSiN纳米多层梯度膜及其制备方法，发明专利。
