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材料工程  2013 

激光熔覆NiCr/Cr3C2-WS2自润滑耐磨涂层的高温摩擦学行为

DOI: 10.3969/j.issn.1001-4381.2013.11.005

Keywords: 激光熔覆,高温耐磨复合涂层,固体润滑

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Abstract:

利用激光熔覆技术在0Cr18Ni9不锈钢基体上制备NiCr/Cr3C2耐磨涂层与NiCr/Cr3C2-30%WS2耐磨自润滑涂层,采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、能谱仪(EDS)分析了涂层的物相组成及显微组织。在室温、300℃和600℃下分别测试了上述涂层的干滑动摩擦学性能,并讨论其磨损机理。实验结果表明添加WS2的熔覆涂层主要有Cr7C3、(Cr,W)C碳化物增强相、γ-(Fe,Ni)/Cr7C3共晶增韧相、WS2及CrS润滑相。两种涂层都随温度的升高,摩擦因数降低,而磨损率增大。在室温及300℃时,添加WS2涂层由于润滑相的作用拥有较好的减摩耐磨性能。在600℃时,由于涂层中碳化物硬质相的强度降低,两种涂层的磨损率显著增大。

References

[1]  李桂花,邹勇,邹增大,等. 激光熔覆原位生成Nb2(C,N)及V8C7陶瓷粒子增强铁基金属涂层[J]. 材料工程,2012,(1):29-33.LI Gui-hua,ZOU Yong,ZOU Zeng-da,et al.In-situ synthesized Nb2(C,N) and V8C7 ceramics particulates reinforced Fe-based composite coating by laser cladding[J].Journal of Materials Engineering,2012,(1):29-33.
[2]  JIANG X, LIU W J, ZHONG M L. Microstructure and dry sliding wear behavior of MoS2/TiC/Ni composite coatings prepared by laser cladding[J]. Surface and Coatings Technology, 2006, 200: 4227-4232.
[3]  DONNET C, ERDEMIR A. Historical developments and new trends in tribological and solid lubricant coatings[J]. Surface and Coatings Technology, 2004, 180-181: 76-84.
[4]  DONNET C, ERDEMIR A. Solid lubricant coatings: recent developments and future trends[J]. Tribology Letters, 2004, 17(3): 389-397.
[5]  曾维华,刘洪喜,王传琦,等.工艺参数对不锈钢表面激光熔覆Ni基图层组织及耐腐蚀性能的影响[J].材料工程,2012,(8):24-29. ZENG Wei-hua, LIU Hong-xi, WANG Chuan-qi, et al. Effects of technological parameters on microstructure and corrosion resistance of laser cladding Ni-based coating on stainless steel surface[J]. Journal of Materials Engineering, 2012,(8): 24-29.
[6]  HUANG C B, DU L Z, ZHANG W G. Effects of solid content on the microstructure and properties of NiCr/Cr3C2-BaF2·CaF2 composite coatings[J]. Journal of Alloys and Compounds, 2009, 479: 777-784.
[7]  俞友军,周健松,陈建敏,等.激光熔覆NiCr/Cr3C2-Ag-BaF2/CaF2金属基高温自润滑耐磨覆层的组织结构及摩擦学性能[J]. 中国表面工程, 2010, 23(3): 64-73.YU You-jun,ZHOU Jian-song,CHEN Jian-min,et al.Microstructure and tribological behavior of laser cladding NiCr/Cr3C2-Ag-BaF2/CaF2 self-lubrication wear-resistant metal matrix composite coating[J].China Surface Engineering,2010,23(3):64-73.
[8]  闫来成,谭华玉,韩欢庆,等. 一种低摩擦因数复合润滑膜的结构与性能研究[J]. 航空材料学报, 2011,31(5): 58-61.YAN Lai-cheng, TAN Hua-yu, HAN Huan-qing, et al. Study on property and structure of duplex lubricating film with lower friction coefficient[J]. Journal of Aeronautical Materials, 2011,31(5): 58-61.
[9]  WANG A H, ZHANG X L, ZHANG X F, et al. Ni-based alloy/submicron WS2 self-lubricating composite coating synthesized by Nd:YAG laser cladding[J]. Materials Science and Engineering A, 2008, 475: 312-318.
[10]  张祥林, 章小峰, 王爱华, 等. 激光熔覆金属基固体自润滑涂层的组织结构[J]. 中国机械工程, 2006, 17(19): 2084-2088. ZHANG Xiang-lin, ZHANG Xiao-feng, Wang Ai-hua, et al. Microstructure of metal-based solid self-lubrication coating by laser cladding[J]. China Mechanical Engineering, 2006, 17(19): 2084-2088.
[11]  ZHANG X F, ZHANG X L, WANG A H, et al. Microstructure and properties of HVOF sprayed Ni-based submicron WS2/CaF2 self-lubricating composite coating[J]. Transactions of Nonferrous Metals Society of China, 2009, 19(1): 85-92.
[12]  黄传兵, 杜令忠, 张伟刚. NiCr/Cr3C2-BaF2·CaF2高温自润滑耐磨涂层的制备与摩擦磨损特性[J]. 摩擦学学报, 2009, 29(1): 68-73. HUANG Chuan-bing, DU Ling-zhong, ZHANG Wei-gang. Preparation and tribological properties of NiCr/Cr3C2-BaF2·CaF2 high temperature self-lubrication wear-resistant coating[J]. Tribology, 2009, 29(1): 68-73.
[13]  沈莲.机械工程材料[M]. 北京:机械工业出版社, 2007:131-137.
[14]  何祥明, 刘秀波, 杨茂盛, 等. 奥氏体不锈钢激光熔覆镍基复合涂层高温磨损行为[J]. 中国激光, 2011, 38(9): 0903007. HE Xiang-ming, LIU Xiu-bo, YANG Mao-sheng, et al. Elevated temperature tribological behaviors of laser cladding nickel-based composite coating on austenitic stainless steel[J]. Chinese Journal of Lasers, 2011, 38(9): 0903007.
[15]  ZHANG H, SHI Y, KUTSUNA M, et al. Laser cladding of colmony 6 powder on AISI316L austenitic stainless steel[J].Nuclear Engineering and Design,2010,240(10):2691-2696.
[16]  SHI Y, ZHANG H, XU C Y. Research on the structure and wear resistance of colomony 6 alloy coating cladded on austenitic stainless steel by laser[J]. Acta Arm Amentar, 2010, 31(7): 928-932.
[17]  刘秀波,虞钢,郭建,等.等离子熔覆γ/Cr7C3 复合材料涂层组织与耐磨性研究[J].材料热处理学报,2006,27(6):114-117. LIU Xiu-bo, YU Gang, GUO Jian, et al. Research on organization and wear resistance of γ/Cr7C3composite coating by plasma cladding[J]. Transaction of Materials and Heat Treatment, 2006, 27(6): 114-117.
[18]  LU X D, WANG H M. Metallic tribological compatibility of laser clad Mo2Ni3Si/NiSi metal silicide coatings[J]. Surface and Coatings Technology, 2005, 200: 2380-2385.
[19]  LIU Y, WANG H M. Elevated temperature wear behaviors of a Co-Mo-Si ternary metal silicide alloy[J]. Scripta Materialia, 2005, 52: 1235-1240.
[20]  ZHANG L Q, WANG H M. High-temperature sliding wear resistance of a Cr3Si/Cr13Ni5Si2 multiphase intermetallic alloy[J]. Materials Letters, 2003, 57: 2710-2715.
[21]  XIONG D S. Lubrication behavior of Ni-Cr-based alloys containing MoS2 at high temperature[J]. Wear, 2001, 251: 1094-1099.

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