冷气动力喷涂Al-Pb合金涂层的研究
摘要
采用冷喷涂技术以铝铅混合粉末为喷涂粉在基体上制备了铝铅合金涂层。利用X射线衍射、光学显微镜、扫描电子显微镜、显微硬度仪对涂层的物相、微观结构和力学性能进行了分析测试，并对冷喷涂铝铅合金涂层的结合机理做了初步的探讨。显微观察结果表明，涂层微观结构细密，铝铅两相均匀分布，无明显聚集长大现象，与钢基体有着良好的结合。磨损试验结果显示，铝铅合金涂层具有良好的减摩效果，在摩擦过程中能够在摩擦表面生成一层完整的铅润滑膜，有效的降低了摩擦系数和磨损量。
The cold gas dynamic spray was used to prepare the Al-Pb alloys coating on 40Cr-steel substrates in this study with the mixture of pure Al powder and pure Pb powder. The coating’s phases, microstructure and mechanics performance were investigated by mean with X-ray diffraction, optics microscope, scan electron microscope, micro-hardness. Make preliminary discussion on the bonding mechanism in cold gas spraying Al-Pb alloy coating. The microstructure of a cold gas sprayed Al-Pb alloy coating was shown by optics and scan electron microscope that Pb has a uniformity distribution in Al base .The interface between the coating and the substrate is free of any defects, therefore, the adhesion of this coating should be excellent. Wear experiment shown Al-Pb alloy coating has good antifrictional properties. In the course of friction one intact lead film come into being and lubricate the wear substrates. The coefficient of friction and wear rate was effective reduced.
The cold gas dynamic spray was used to prepare the Al-Pb alloys coating on 40Cr-steel substrates in this study with the mixture of pure Al powder and pure Pb powder. The coating’s phases, microstructure and mechanics performance were investigated by mean with X-ray diffraction, optics microscope, scan electron microscope, micro-hardness. Make preliminary discussion on the bonding mechanism in cold gas spraying Al-Pb alloy coating. The microstructure of a cold gas sprayed Al-Pb alloy coating was shown by optics and scan electron microscope that Pb has a uniformity distribution in Al base .The interface between the coating and the substrate is free of any defects, therefore, the adhesion of this coating should be excellent. Wear experiment shown Al-Pb alloy coating has good antifrictional properties. In the course of friction one intact lead film come into being and lubricate the wear substrates. The coefficient of friction and wear rate was effective reduced.
引文
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[2] Markus Merkwitz and Walter Hoyer. Z.Metallkd, 1999,90(5):363~367.
[3] K.I.Moore, D.L.Zhang and B.Cantor, Actal Metal, mater, 1990,38(7):1327~1242.
[4] 张磊,二维铅薄膜熔化和过热行为研究:[博士学位论文],中国科学院金属研究所,2003
[5] 左邻,Al-Pb系非混合合金的研制现状与展望[J],材料工程,1995（2）:14-16.
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[7] H.Fujii,T.Kimura,H.Ktaguchi,H,Kumakura,K.Togano,Journal of Materials science,1995(30):3429~3434.
[8] M.B.H.Breese,L.T.Romano,C.J.Salter,G.W.Grime and F.Watt,J.Mater.Res. Vol.7,No.9,Sep 1992,2373~2378.
[9] 赵九州,陈玉勇,张景辉,贾均.金属科学与工艺1990,9(2):77~82.
[10] H.-G.Brokmeier,Materials science and Engineering,1991,(A175):131~139.
[11] Yong Chan Suh and Zin Hyoung Lee.Scripta Matallurgicaet Materialia,1995,33(8):1231~1237.
[12] M.Zhu, X.Z.Che and Z.X.Li, Journal of Materials science,1998,(33):5873~5881.
[13] M.Zhu, B.L.Li, Y.Cao, L.Li, K.C.luo, H.X.Sui and Z.X.Li.. Scripta Materialia,36(4):447~458.
[14] Y.Li, et al, Philosophical Magazine Letters,Vol.78,No.1, 1998 37
[15] M.ZHU, et al, J. Materials Sci., 33(1998) 5873
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[17] F.Zhou, et al, J. MATER RES.Vol.13,No.2,Feb 1998 249
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[21] J.Huang, et al, Scripta Materialia, Vol.35,No.8,1996 919
[22] 耿浩然,马家骥,山东工业大学学报,1991,26(3):63~70.
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[24] 徐永福等.材料科学与工程,1999,17(2):71~75.
[25] Jerome F.Cole, Frank E.Goodwin. JOM 1990,(6):41~43.
[26] S.Zhong, J.Wang, et al..Montreal,Canada,1997,178~184.
[27] ASM滑动轴承委员会.滑动轴承材料,868~889.
[28] Schoop M U.,U.S.Patent 1.128,059(1915)
[29] AΛXUMOBA.п.,KOCAPEB B.φ,пAпы PU HA.H,BOK.AHCCCP,1990,TOM.315,No.5:1062
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[33] Alkhimov A.P,Kosarev V.F,Nesterovich N.I,Papyrin A.N,Shushpanov M.M,U.S.paten.5302,414,apri,12,1994
[34] Alkhimov A.P,Kosarev V.F,Nesterovich N.I,Papyrin A.N,Shushpanov
M.M,Eropean Patent No.0484 533 Al,May 13,1992
[35] Mecume R C,Donlon W.T,Cartwrighf E.L,Papyrin A N,Rybicki E.F,Shadley J.R.proceeding of the qth National Theimal Spray conferencc(Mateliab pank,OH:ASM, 1996,P.36)
[36] Segall A E,Papyrin A.N,Conway J.C, Shapiro D,JOM.1998,:52
[37] Steckiste T.H, Smith J R,Tects R E ,Moleski J.J,Gorkiewicg D.W,Tison R.P,Marantg D.R,Kowalsky K.A,Riggs W.I,Zajchowski P.H,Pilsner B,Mccune R C,Barnett K.J,Srlf.coat.Technd.1999,111:62
[38] 熊天英、吴杰、金花子等。一种新喷涂技术—冷气动力喷涂。腐蚀科学与防护技术，2001，13（5）：267-269。
[39] 罗曼芦,王兆华.<气体动力学>上海交通大学出版社(1989).
[40] F.P.鲍登（英）,D.泰伯（英），固体的摩擦与润滑,机械工业出版社（1982）.
[41] V.Agarwala,K.G.Satyanarayana,R.C.Agarwala,Rajnish Garg. Materials Science and Engineeering,A327(2002):186-202.
[42] J.An,Y.B.Liu,Q.Y.Zhang,C.Dong. Materials Characterization 48(2002):347-357.
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