罗健,刘秀波,陆小龙,余鹏程,陈瑶,石皋莲,吴少华

• 1:苏州大学机电工程学院
• 2:中国科学院兰州化学物理研究所固体润滑国家重点实验室
• 3:苏州工业职业技术学院

摘要(Abstract)：

以NiCr/Cr3C2-10%CaF2(质量分数,%)复合粉末为原料,采用激光熔覆技术在Ti-6Al-4V合金表面成功制备出了γ-NiCrAlTi/TiC/CaF2高温自润滑耐磨复合涂层。为研究该复合涂层的高温稳定性,在600℃下分别对该复合涂层保温24、48、96 h,并分别研究了不同保温时间下复合涂层的物相、显微硬度、摩擦学性能的变化及其机理。结果表明:高温处理前后复合涂层物相组成基本不变,由于γ-NiCrAlTi固溶体的溶解,涂层显微硬度下降约110 HV0.3;高温处理前后涂层的摩擦系数及磨损率变化较小,在长时间高温保温情况下,涂层的组织和摩擦学性能都表现出良好的高温稳定性。

关键词(KeyWords)： 高温耐磨性;复合涂层;组织与性能;高温稳定性

Abstract:

Keywords:

基金项目(Foundation): 江苏省自然科学基金(BK20141194,BK20131155);; 江苏省材料摩擦学重点实验室开放基金(Kjsmcx201301)

作者(Author): 罗健,刘秀波,陆小龙,余鹏程,陈瑶,石皋莲,吴少华

DOI: 10.13289/j.issn.1009-6264.2015.03.035

参考文献(References)：

• [1]Moskalewicz T,Wendler B,Zimowski S,et al.Microstructure,micro-mechanical and tribological properties of the nc-WC/a-C nanocomposite coatings magnetron sputtered on non-hardened and oxygen hardened Ti-6Al-4V alloy[J].Surface and Coatings Technology,2010,205(7):2668-2677.
• [2]张晓伟,刘洪喜,蒋业华,等.Ti6Al4V合金表面激光熔覆功能复合涂层研究进展[J].稀有金属材料与工程,2012,41(1):178-183.ZHANG Xiao-wei,LIU Hong-xi,JIANG Ye-hua,et al.Research progress of functional composite coatings on Ti6Al4V alloy surface prepared by laser cladding technique[J].Rare Metal Materials and Engineering,2012,41(1):178-183.
• [3]Straffelini G,Molinari A.Dry sliding wear of Ti-6Al-4V alloy as influenced by the counterface and sliding conditions[J].Wear,1999,236:328-338.
• [4]陈浩,潘春旭,潘邻,等.激光熔覆耐磨涂层的研究进展[J].金属热处理,2002,27(9):5-9.CHEN Hao,PAN Chun-xu,PAN Lin,et al.Development of wear-resistant laser cladding[J].Heat Treatment of Metals,2002,27(9):5-9.
• [5]吕旭东,王华明.激光熔敷MO2Ni3Si/Ni Si金属硅化物耐磨复合材料涂层组织与抗磨性能[J].摩擦学学报,2003,23(3):183-187.LXu-dong,WANG Hua-ming.Microstructure and dry sliding wear resistance of laser clad MO2Ni3Si/Ni Si metal silicide composite coatings[J].Tribology,2003,23(3):183-187.
• [6]XIANG Zhan-feng,LIU Xiu-bo,REN Jia,et al.Investigation of laser cladding high temperature anti-wear composite coatings on Ti6Al4V alloy with the addition of self-lubricant Ca F2[J].Appl Surf Sci,2014,313:243-250.
• [7]王维夫,王茂才,孙凤久.激光熔覆钛基复合涂层中原位自生Ti C的形态特征与生长机制[J].金属热处理,2009,34(2):65-69.WANG Wei-fu,WANG Mao-cai,SUN Feng-jiu.Morphological characteristics and growth mechanism of in-situ Ti C in titanium-base composite coating formed by laser cladding[J].Heat Treatment of Metals.2009,34(2):65-69.
• [8]陈华辉,徐采云,王振延,等.WC颗粒增强Ni基合金复合涂层的热处理组织变化[J].中国表面工程,2010,23(2):64-70.CHEN Hua-hui,XU Cai-yun,WANG Zhen-ting,et al.Microstructure change of WC particles reinforced nickel based alloy laser cladding coatings during heat treatment[J].China Surface Engineering,2010,23(2):64-70.
• [9]卢雪飞,梅炳初,周卫兵,等.放电等离子制备Ti3Al C2/Ti B2复合材料及性能[J].硅酸盐学报,2007,35:648-652.LU Xue-fei,MEI Bing-chu,ZHOU Wei-bing,et al.Preparation and properties of Ti3Al C2/Ti B2composites by spark plasma sintering[J].Journal of the Chinese Ceramic Society,2007,35:648-652.
• [10]章小峰,王爱华,张祥林,等.激光熔覆Ni45-Ca F2-WS2自润滑涂层组织与性能[J].中国有色金属学报,2008,18:215-220.ZHANG Xiao-feng,WANG Ai-hua,ZHANG Xiang-lin,et al.Microstructure and tribological properties of laser cladding Ni45-Ca F2-WS2selflubrication coating[J].The Chinese Journal of Nonferrous Metals,2008,18:215-220.
• [11]邱星武,李刚,邱玲.激光熔覆技术发展现状及展望[J].稀有金属与硬质合金,2008,36(3):54-57.QIU Xing-wu,LI Gang,QIU Ling.The latest development and prospects of laser cladding technology[J].Rare Metals and Cemented Carbides,2008,36(3):54-57.
• [12]孟祥军,刘秀波,刘海青,等.热处理对Ni Cr/Cr3C2-WS2复合涂层组织与性能的影响[J].材料热处理学报,2013,34(S2):188-193.MENG Xiang-jun,LIU Xiu-bo,LIU Hai-qing,et al.Effects of heat treatment on microstructure and performance of Ni Cr/Cr3C2-WS2composite coatings[J].Transactions of Materials and Heat Treatment,2013,34(S2):188-193.
• [13]LIU Xiu-Bo,LIU Hai-Qing,MENG Xiang-Jun,et al.Effects of aging treatment on microstructure and tribological properties of nickel-based hightemperature self-lubrication wear resistant composite coatings by laser cladding[J].Materials Chemistry and Physics,2014,143:616-621.
• [14]LIU Wen-gang,LIU Xiu-bo,ZHANG Zhen-guo,et al.Development and characterization of composite Ni-Cr-C-Ca F2laser cladding onγ-Ti Al intermetallic alloy[J].Journal of Alloy and Compounds,2009,470:L25-L28.

文章评论(Comment)：