黄传兵,杜令忠,刘伟,张伟刚.等离子喷涂CoCrAl-B4C涂层的微观结构与性能[J].表面技术,2012,(3):1-4.
HUANG Chuan-bing,DU Ling-zhong,LIU Wei,ZHANG Wei-gang.Microstructure and Properties of Plasma Sprayed CoCrAl-B4C Coating[J].Surface Technology,2012,(3):1-4 |
| 等离子喷涂CoCrAl-B4C涂层的微观结构与性能 |
| Microstructure and Properties of Plasma Sprayed CoCrAl-B4C Coating |
| 投稿时间：2012-02-13 修订日期：2012-06-20 |
| DOI： |
| 中文关键词: 等离子喷涂 碳化硼 微观结构 力学性能 自润滑 |
| 英文关键词:plasma spray boron carbide microstructure mechanical properties solid lubrication |
| 基金项目:国家自然科学基金(51001093);江苏省自然科学基金(BK2011452) |
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| Author | Institution |
| HUANG Chuan-bing | State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China |
| DU Ling-zhong | State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China |
| LIU Wei | State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China |
| ZHANG Wei-gang | State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China |
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| 中文摘要: |
| 采用大气等离子喷涂技术制备了CoCrAl-B4C涂层,测试了涂层的硬度、结合强度、热震性能及不同条件下的摩擦系数。结果表明:涂层的平均显微硬度为980HV0.2,平均结合强度为17.5MPa,经900℃水淬热震循环10次仍然完好;涂层经700℃热处理后,摩擦系数较低且波动小,水蒸气的存在有利于涂层摩擦系数的降低,其主要原因是涂层表面在热处理与摩擦过程中生成了B2O3 和H3BO3 自润滑相。 |
| 英文摘要: |
| CoCrAl-B4C coating was successfully deposited by air plasma spray technology. The coating micro-structure, microhardness, bonding strength, thermal shock and tribological performance were analyzed. The results show that the microhardness and bonding strength of CoCrAl-B4C coating are 980HV0.2 and 17.5 MPa respectively, and no failure occurs after ten time's thermal shock tests at 900℃; The lower friction coefficients of CoCrAl-B4C coating appear when the coating in water vapor atmosphere or preheating treatment at 700 ℃, which are attributed to the formation of B2O3 and H3BO3 lubricating phases on the worn surface. |
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