| 气门锥面等离子喷焊钴基合金层的高温磨损特性研究 |
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| 引用本文： | 罗天友,宁志坚,揭晓华,蒋涛.气门锥面等离子喷焊钴基合金层的高温磨损特性研究[J].汽车工艺与材料,2006(10):5-8. |
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| 作者姓名： | 罗天友 宁志坚 揭晓华 蒋涛 |
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| 作者单位： | 1. 怀集汽车配件制造有限公司,广东,怀集,526400
2. 广东工业大学,广东,广州,510006 |
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| 摘 要： | 为适应高温、腐蚀、冲击载荷等恶劣的工作条件,采用等离子喷焊方法在气门锥面制备了钴基合金涂层。在气门模拟磨损试验机上进行了磨损试验,用扫描电镜观察了焊层磨损面的组织形貌,用能谱仪分析了焊层磨损面的成分,测试了焊层磨损后的硬度变化。结果表明,该喷焊层具有良好的耐高温磨损性能。
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| 关 键 词： | 气门 等离子喷焊 钴基合金 磨损特性 |
| 文章编号： | 1003-8817(2006)10-0005-04 |
| 收稿时间： | 2006-02-10 |
| 修稿时间： | 2006年2月10日 |
Research on High Temperature Wear Behaviors of Plasma Spray-Welded Cobalt-Base Alloy Layer on Valve Cone |
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| LUO Tian-you,NING Zhi-jian,JIE Xiao-hua,JIANG Tao.Research on High Temperature Wear Behaviors of Plasma Spray-Welded Cobalt-Base Alloy Layer on Valve Cone[J].Automobile Technology & Material,2006(10):5-8. |
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| Authors: | LUO Tian-you NING Zhi-jian JIE Xiao-hua JIANG Tao |
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| Institution: | 1.Huaiji Auto-accessories Mfg.,Inc.,Ltd., Huaiji Guangdong 526400, China ;2.Guangdong University of Technology, Guangzhou Guangdong 510006, China |
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| Abstract: | In order to be adapted to the severe working conditions of high temperature corrosion and impact load,etc.,cobalt-base alloy layer was fabricated on valve cone surface by plasma spray welding.Wear test was performed on a valve simulation wear test machine.The worn surface morphologies of the welded layer were examined with a scanning electron microscope,the composition of the worn surface of welded layer was analyzed with energy dispersive spectrometer,and the hardness change of worn welded layer was measured.Results showed that the spray welded layer had better high temperature wear resistance. |
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| Keywords: | valve plasma spray welding cobalt-base alloy wear behaviors |
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