石宇,刘瑞良,杨前程

• 1:哈尔滨工程大学材料科学与化学工程学院超轻材料与表面技术教育部重点实验室

摘要(Abstract)：

采用低温气体渗氮工艺对1Cr17和1Cr17Ni2不锈钢进行表面改性处理。利用光学显微镜、X射线衍射分析(XRD)、X光电子谱分析仪(XPS)、显微硬度计等研究了不同工艺下渗氮层的组织结构和硬度,获得渗层增长动力学曲线,分析合金元素对渗层组织结构和渗层增长的影响。结果表明:采用低温气体渗氮处理可在不锈钢表面形成一定厚度的致密且完整的改性层,不锈钢表面硬度显著提升。渗氮层主要由含氮"膨胀"α相(α_N)和Fe_(2～3)N相组成。Ni元素有利于含氮"膨胀"α相的形成和渗层厚度的增加以及渗层硬度的提高。

关键词(KeyWords)： 不锈钢;低温气体渗氮;“膨胀”α相;组织结构;生长动力学

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51871071);; 黑龙江省自然科学基金(LH2019E029);; 哈尔滨工业大学金属精密热加工国家级重点实验室基金(614290903061308);; 中央高校基金(3072020CF100)

作者(Author): 石宇,刘瑞良,杨前程

DOI: 10.13289/j.issn.1009-6264.2020-0422

参考文献(References)：

• [1] 白鹤，王伯健.马氏体不锈钢成分、工艺和耐蚀性的进展[J].特殊钢，2009,30(2):30-33.BAI He,WANG Bo-jian.Progress in chemical composition,process and corrosion resistance of martensite stainless steel[J].Special Steel,2009,30(2):30-33.
• [2] 赵振业，李春志，李志，等.探索强韧化机理，创新超高强度高韧性不锈钢[J].中国有色金属学报，2004,14(S1):202-206.ZHAO Zhen-ye,LI Chun-zhi,LI Zhi,et al.Exploring strength and toughening mechanism and innovating super high strength and toughness stainless steel[J].Transactions of Nonferrous Metals Society of China,2004,14(S1):202-206.
• [3] Gautam D,Ganguli B,Sharma S.Study of surface properties of plasma nitrided ferritic stainless steel 430L[J].Materials Performance and Characterization,2017,6(4):581-593.
• [4] Zhang Z L,Bell T.Structure and corrosion resistance of plasma nitrided stainless steel[J].Surface Engineering,1985,1(2):131-136.
• [5] Ichii K,Fujimura K,Takase T.Structure of the ion-nitrided layer of 18-8 stainless steel[J].Technological Report of Kansai University,1986,27:135-144.
• [6] Liu R L,Wang S,Wei C Y,et al.Microstructure and corrosion behavior of low temperature carburized AISI 304 stainless steel[J].Materials Research Express,2019,6(6):066417.
• [7] Liu R L,Yan M F.Characteristics of AISI 420 stainless steel modified by low-temperature plasma carburizing with gaseous acetone[J].Coatings,2019,9:75-84.
• [8] 刘瑞良，韦朝阳，徐昂，等.AISI431 不锈钢表面“膨胀”α 相层的制备和性能[J].材料热处理学报，2017,38(4):165-172.LIU Rui-liang,WEI-Chao-yang,XU Ang,et al.Preparation and properties of ‘expanded’ α phase layer on AISI 431 stainless steel[J].Transaction of Materials and Heat Treatment,2017,38(4):165-172.
• [9] Buhagiar J,Li X,Dong H.Formation and microstructural characterisation of S-phase layers in Ni-free austenitic stainless steels by low temperature plasma surface alloying[J].Surface and Coatings Technology,2009,204 (3):330-335.
• [10] Kasprzyk D,Stypula B,Trowsk P,et al.The role of MW plasma treatment on the corrosion resistance of stainless steels[J].Archives of Metallurgy and Materials,2013,58(4):1169-1175.
• [11] Saravanan P,Raja VS,Mukherjee S.Effect of alloyed molybdenum on corrosion behavior of plasma immersion nitrogen ion implanted austenitic stainless steel[J].Corrosion Science,2013,74:106-115.
• [12] Haruman E,Sun Y,Adenan M S.A comparative study of the tribocorrosion behaviour of low temperature nitrided austenitic and duplex stainless steels in NaCl solution[J].Tribology International,2020,151:106412.
• [13] 刘晗，叶雪梅，孙泉，等.合金元素对离子碳氮共渗层生长动力学影响[J].材料热处理学报，2015,36(S1):203-207.LIU Han,YE Xue-mei,SUN Quan,et al.Effect of alloying elements on growth kinetics of plasma nitrocarburized layers[J].Transactions of Materials and Heat Treatment,2015,36(S1):203-207.
• [14] Liu Z,Peng Y,Chen C,et al.Effect of surface nanocrystallization on low-temperature gas carburization for AISI 316L austenitic stainless steel[J].International Journal of Pressure Vessels and Piping,2020,182:104053.
• [15] Yang R,Wu G,Zhang X,et al.Gradient microstructure in a gear steel produced by pressurized gas nitriding[J].Materials,2019,12(22):3797.
• [16] Kutschmann P,Lindner T,B?rner K,et al.Effect of adjusted gas nitriding parameters on microstructure and wear resistance of HV0.1OF-sprayed AISI 316L coatings[J].Materials,2019,12(11):1760-1768.
• [17] 王方俊.Ni元素对氮在FeCrNi奥氏体合金中扩散行为影响的实验研究[D].大连：大连理工大学，2018.WANG Fang-jun,Experimental study on the effect of Ni content on the diffusion behavior of nitrogen in FeCrNi austenitic alloy[D].Dalian:Dalian University of Technology,2018.
• [18] Riviere J P,Cahoreau M,Méheust P.Chemical bonding of nitrogen in low energy high flux implanted austenitic stainless steel[J].Journal of Applied Physics,2002,91(10):6361-6366.
• [19] Lei M K,Zhu X M.Chemical state of nitrogen in a high nitrogen face-centered-cubic phase formed on plasma source ion nitrided austenitic stainless steel[J].Journal of Vacuum Science and Technology A:Vacuum,Surfaces,and Films,2004,22(5):2067-2070.

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