张锋刚,朱小鹏,雷明凯

• 1:陕西理工学院材料科学与工程学院
• 2:大连理工大学材料科学与工程学院表面工程研究室

摘要(Abstract)：

利用束流密度50~200 A/cm2、脉冲宽度70 ns的强流脉冲离子束(HIPIB)对WC-Ni硬质合金进行表面辐照处理,测试了辐照WC-Ni硬质合金的微观组织和表面硬度,采用环-块式摩擦磨损试验机、SEM和EDS考察了HIPIB辐照WC-Ni硬质合金的摩擦磨损性能及其磨损机理。结果表明,随束流密度增加,WC-Ni硬质合金表面发生重熔与Ni粘结相的选择性烧蚀,表面重熔致密化,表面硬度显著增加,摩擦系数降低、耐磨性提高,200 A/cm2辐照硬质合金表面熔层约1.6μm,组织明显细化,表面硬度可达14.86 GPa,摩擦系数和磨损率分别降低18%和58%。HIPIB辐照使硬质合金表面磨损机制从原始硬质合金的Ni粘结相优先去除引发WC颗粒剥落去除转变为以均匀微观切削为主的磨粒磨损,这归因于HIPIB辐照WC-Ni硬质合金表面重熔致密化及晶粒细化。

关键词(KeyWords)： 强流脉冲离子束;WC-Ni硬质合金;摩擦系数;耐磨性

Abstract:

Keywords:

基金项目(Foundation): 陕西省自然科学基础研究计划项目(2015JQ5193);; 陕西理工学院科研基金资助项目(SLGQD14-12)

作者(Author): 张锋刚,朱小鹏,雷明凯

DOI: 10.13289/j.issn.1009-6264.2016.03.027

参考文献(References)：

• [1]吴月天.机械密封用耐磨、耐蚀硬质合金材料-YCN3合金研制[J].硬质合金,1996,13(2):95-98.WU Yue-tian.A new kind of wear-resistance and corrosion-resistance alloy-YCN3 made for mechanical seal[J].Cemented Carbide,1996,13(2):95-98.
• [2]白佳声,章文宝.硬质合金材料的性能特点及其发展应用前景[J].上海金属,2001,23(6):10-13.BAI Jia-sheng,ZHANG Wen-bao.The characteristics of hardmetals and its application prospection[J].Shanghai Metals,2001,23(6):10-13.
• [3]Human A M,Northrop I T,Luyckx S B,et al.A comparison between cemented carbides containing cobalt-and nickel-based binders[J].Journal of Hard Materials,1991,2(3/4):245-256.
• [4]温庆丰,刘莹,黄伟峰,等.机械密封端面材料WC-Ni硬质合金的研究进展[J].粉末冶金材料科学与工程,2011,16(1):1-6.WEN Qing-feng,LIU Ying,HUANG Wei-feng,et al.Development of research on WC-Ni cemented carbides of mechanical seal face materials[J].Materials Science and Engineering of Powder Metallurgy,2011,16(1):1-6.
• [5]Davis H A,Remnev G E,Stinnett R W,et al.Intense ion-beam treatment of materials[J].MRS Bulletin,1996,21:58-62.
• [6]Lei M K,Zhu X P,Liu C,et al.A novel shock processing by high-intensity pulsed ion beam[J].Journal of Manufacturing Science and Engineering,2009,131:031013.
• [7]Pogrebnjak A D.Metastable states and structural phase changes in metals and alloys exposed to high power pulsed ion beams[J].Physica Status Solidi A,1990,117:17-51.
• [8]Remnev G E,Shulov V A.Application of high-power ion beams for technology[J].Laser and Particle Beams,1993,11(4):707-731.
• [9]Pogrebnjak A D,Shablya V T,Siridenko N V,et al.Study of deformation states in metals exposed to intense-pulsed-ion beams(IPIB)[J].Surface and Coatings Technology,1999,111:46-50.
• [10]Zhu X P,Lei M K,Dong Z H,et al.Crater formation on the surface of titanium irradiated by a high-intensity pulsed ion beam[J].Surface and Coatings Technology,2003,173:105-110.
• [11]董志宏.强流脉冲离子束特性优化及辐照力学效应研究[D].大连:大连理工大学,2007.DONG Zhi-hong.Characteristic optimization and dynamic effect irradiated by high-intensity pulsed ion beam[D].Dalian:Dalian University of Technology,2007.
• [12]王玉辉,肖福仁,廖波,等.W6Mo5Cr4V2钢表面强流脉冲离子束辐照研究[J].材料热处理学报,2007,28(6):143-147.WANG Yu-hui,XIAO Fu-ren,LIAO Bo,et al.Study on surface modification of W6Mo5Cr4V2 steel by high intensity pulsed ion beam irradiation[J].Transaction of Materials and Heat Treatment,2007,28(6):143-147.
• [13]Wang X,Han X G,Lei M K,et al.Effect of high-intensity pulsed ion beams irradiation on corrosion resistance of 316L stainless steel[J].Material Science and Engineering A,2007,457:84-89.
• [14]胡永峰,朱雪梅,朱小鹏,等.强流脉冲离子束辐照合金Ti6Al4V的耐蚀性[J].大连铁道学院学报,2002,23(3):84-87.HU Yong-feng,ZHU Xue-mei,ZHU Xiao-peng,et al.Corrosion resistance of alloy Ti6Al4V irradiated by high-intensity pusled ion-beam[J].Journal of Dalian Railway Institute,2002,23(3):84-87.
• [15]Li P,Lei M K,Zhu X P.Dry sliding tribological behaviour of AZ31 magnesium alloy irradiated by high-intensity pulsed ion beam[J].Applied Surface Science,2010,257:72-81.
• [16]刘臣.强流脉冲离子束辐照的冲击加工与强化作用研究[D].大连:大连理工大学,2009.LIU Chen.On shock processing and strengthening by irradiation using high-intensity pulsed ion beam[D].Dalian:Dalian University of Technology,2009.
• [17]Zhu X P,Lei M K,Dong Z H,et al.Characterization of a high-intensity unipolar-mode pulsed ion source with improved magnetically insulated diode[J].Review of Scientific Instruments,2003,74:47-52.
• [18]Jia K,Fischer T E.Sliding wear of conventional and nanostructured cemented carbides[J].Wear,1997,203-204:310-318.
• [19]Pirso J,Viljus M,LetunovitS.Friction and dry sliding wear behaviour of cermets[J].Wear,2004,257:815-824.
• [20]Engqvist H,Botton G A,Ederyd S,et al.Wear phenomena on WC-based face seal rings[J].International Journal of Refractory Metals and Hard Materials,2000,18:39-46.

文章评论(Comment)：