辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2017, Vol. 37 ›› Issue (2): 54-59.DOI: 10.3969/j.issn.1672-6952.2017.02.012

• 化工机械 • 上一篇    下一篇

超音速火焰喷涂WC-10Co4Cr 涂层组织及耐磨耐蚀性研究

江利丰1,张广伟1,2   

  1. 1.大连华锐重工特种备件制造有限公司,辽宁 大连 116052;  2.沈阳工业大学 材料科学与工程学院,辽宁 沈阳 110178
  • 收稿日期:2017-01-05 修回日期:2017-02-08 出版日期:2017-04-20 发布日期:2017-05-04
  • 通讯作者: 张广伟(1981-),男,博士研究生,从事特种焊接及表面强化技术方面的研究;E-mail:zgw2006094@163.com
  • 作者简介:江利丰(1965-),男,工程师,从事特种焊接及表面强化技术方面的研究;E-mail:jianglf5098@sina.com
  • 基金资助:
    国家自然科学基金项目(51301112);沈阳市科学技术基金项目(F14-231-1-26).

Study on the Microstructure and Wear/Corrosion Resistance of  WC-10Co4Cr Coating Deposited by High Velocity Oxy-Fuel

Jiang Lifeng1,Zhang Guangwei1,2   

  1. 1.Dalian Huarui Heavy Industrial Special Spear Parts Co.,Ltd.,Dalian Liaoning 116052,China; 2.School of  Materials Science and Engineering,Shenyang University of Technology,Shenyang Liaoning 110178,China
  • Received:2017-01-05 Revised:2017-02-08 Published:2017-04-20 Online:2017-05-04

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摘要：         采用超音速火焰喷涂工艺在不同喷涂距离下制备了WC-10Co4Cr涂层,并对其组织结构及耐磨耐腐蚀性能进行了研究。利用金相显微镜、扫描电子显微镜、X射线衍射仪分析了涂层的组织结构和相组成,并测试了涂层显微硬度、孔隙率;对涂层磨损表面进行了观察分析,探讨了涂层的失效形式。结果表明,喷涂距离对涂层的组织结构及耐磨性具有一定影响。适当增加喷涂距离,粒子由于在焰流中停留时间增加而使熔化程度加大,撞击基体后扁平化现象明显。因此,涂层的致密度、耐磨性、耐腐蚀性都有所提高。当喷涂距离为380mm 时,涂层呈现出较好的耐磨性及耐腐蚀性。

关键词: 超音速火焰喷涂,    ,  WC-10Co4Cr涂层,    ,  喷涂距离,   , 耐磨性,    , 耐腐蚀性

Abstract:

       WC-10Co4Cr coatings were prepared by high velocity oxy-fuel with different spray distances. The internal structure and wear/corrosion resistance of the coating were studied. The internal structure and phase composition of the coating were analyzed by Metallographic microscope, SEM and XRD. The microscopic structure, microhardness, porosity, density, wear/ corrosion resistance properties were tested. The results showed that the particle stayed in the jet for longer time and in the process of spraying it enlarged the melting degree as the distance increased. As a result, complete flattening of particles was gained which increased the density of coating and the property of wear resistance and corrosion resistance. The coating showed the best property of wear resistance and corrosion resistance at the spray distance of 380 mm.

Key words: High velocity oxy-fuel,    , WC-10Co4Cr coatings,    , Spray distance,    , Wear resistance,    , Corrosion resistance

引用本文

江利丰,张广伟. 超音速火焰喷涂WC-10Co4Cr 涂层组织及耐磨耐蚀性研究[J]. 辽宁石油化工大学学报, 2017, 37(2): 54-59.

Jiang Lifeng,Zhang Guangwei. Study on the Microstructure and Wear/Corrosion Resistance of  WC-10Co4Cr Coating Deposited by High Velocity Oxy-Fuel[J]. Journal of Liaoning Petrochemical University, 2017, 37(2): 54-59.

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