搭接对激光熔覆Ni60合金涂层组织影响的研究

材料导报, 2010, 24(22): 10-12.

1.同济大学材料科学与工程学院,上海,200092;上海交通大学机械与动力工程学院,上海,200030;河南科学与技术大学,洛阳,471003

2.同济大学材料科学与工程学院,上海,200092

3.上海交通大学机械与动力工程学院,上海,200030

4.上海交通大学机械与动力工程学院,上海,200030

基金项目: 国家自然科学基金资助项目(50675136;50375096)

Influence of Overlapping on the Microstructure of Laser Cladding Ni60 Alloy Coating

通过激光熔覆在45#钢基体上获得了质量良好的单道和多道搭接的Ni60合金涂层.研究了搭接对激光熔覆Ni60合金涂层显微组织的影响.结果表明,单道熔覆涂层中M7C3型碳化物形貌为树枝状,尺寸较小;多道搭接涂层中M7C3型碳化物形貌为不规则的块状、针状、串珠状等,且尺寸粗大.

[1]	Li Sheng;Hu Qianwu;Zeng Xiaoyan et al.Effect of carbon content on the microstructure and the cracking susceptibility of Fe-based laser-clad layer[J].Applied Surface Science,2005,240(04):63.
[2]	董世运,马运哲,徐滨士,韩文政.激光熔覆材料研究现状[J].材料导报,2006(06):5-9,13.
[3]	Otsubo F;Era H;Kishitake K .Structure and phases in nickel-base self-fluxing alloy coating containing high chromium and boron[J].Journal of Thermal Spray Technology,2000,9(01):107.
[4]	Navas C;Colaco R;de Damborenea J;Vilar R .Abrasive wear behaviour of laser clad and flame sprayed-melted NiCrBSi coatings[J].Surface & Coatings Technology,2006(24):6854-6862.
[5]	Chen H;Xu C;Qu J et al.Sliding wear behavior of laser clad coatings based upon a nickel-based self-fluxing alloy codeposited with conventional and nanostructured tungsten carbide-cobalt hardmetals[J].Wear,2005,259(12):801.
[6]	Li Q.;Lei TQ.;Chen CZ.;Chen WZ.;Zhang DW. .Comparison of laser-clad and furnace-melted Ni-based alloy microstructures[J].Surface & Coatings Technology,2001(2/3):122-135.
[7]	Yang S;Chen N;Liu WJ;Zhong ML;Wang Z;Kokawa H .Fabrication of nickel composite coatings reinforced with TiC particles by laser cladding[J].Surface & Coatings Technology,2004(2/3):254-260.
[8]	Zhang Dawei;Leia T C;Zhang Jige et al.The effects of heat treatment on microstructure and erosion properties of laser surface-clad Ni-base alloy[J].Surface and Coatings Technology,1999,115(2-3):176.

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