| 引用本文: | 田浩亮,魏世丞,陈永雄,刘 毅,童辉,徐滨士.高速电弧喷涂再制造曲轴用复合涂层的设计与研究[J].材料科学与工艺,2013,21(5):51-56.DOI:10.11951/j.issn.1005-0299.20130509. |
| TIAN Hao-liang,WEI Shi-cheng,CHEN Yong-xiong,LIU Yi,TONG Hui,XU Bin-shi.Research and design of composite coatings applied in remanufacturing crankshaft by high velocity arc spraying[J].Materials Science and Technology,2013,21(5):51-56.DOI:10.11951/j.issn.1005-0299.20130509. |
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| 高速电弧喷涂再制造曲轴用复合涂层的设计与研究 |
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田浩亮1,2,魏世丞2,陈永雄2,刘 毅2,童辉2,徐滨士2
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(1.北京航空航天大学 材料科学与工程学院,北京 100037; 2. 装甲兵工程学院 装备再制造技术国防科技重点实验室,北京 100072)
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| 摘要: |
| 为提高再制造曲轴的涂层性能和使用寿命,设计了FeAlCrNi/3Cr13、Ni95Al/3Cr13和1Cr13/3Cr13的3种复合涂层和不喷涂过渡层的3Cr13涂层,利用扫描电镜、能谱仪和微动摩擦磨损设备等测试技术分析了4种涂层的微观组织和微区成分组成,研究了喷涂不同过渡层对复合涂层结合强度的影响,重点考察了FeAlCrNi/3Cr13复合涂层的耐磨性能.结果表明, FeAlCrNi/3Cr13复合涂层组织致密,孔隙率约3.2%,氧化物含量低,涂层平均结合强度达到46.6 MPa,复合涂层在高载荷油润滑摩擦条件下的耐磨性能远高于基体45钢.FeAlCrNi/3Cr13复合涂层可以应用到高速电弧喷涂再制造修复曲轴产业中. |
| 关键词: 曲轴 再制造 高速电弧喷涂 微观组织 复合涂层 |
| DOI：10.11951/j.issn.1005-0299.20130509 |
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| 基金项目:国家重点基础研究发展规划资助项目(2011CB013403)；国家自然科学基金资助项目(51105377；50971132)；国家科技支持课题(2011BAF11B07). |
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| Research and design of composite coatings applied in remanufacturing crankshaft by high velocity arc spraying |
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TIAN Hao-liang1,2, WEI Shi-cheng2, CHEN Yong-xiong2, LIU Yi2, TONG Hui2, XU Bin-shi2
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(1. School of Material Science and Engineering, Beijing University of Aeronautics ＆ Astronautics , Beijing 100037,China; 2. National key Laboratory for Remanufacturing, Academy of Armored Forces Engineering, Beijing 100072,China)
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| Abstract: |
| Aiming at enhancing the properties and working life of the remanufacturing crankshaft, the microstructure and chemical element composition of FeAlCrNi/3Cr13, Ni95Al/3Cr3,1Cr13/3Cr13 and 3Cr13 coatings were studied based SEM and EDS tester. The wear resistance of FeAlCrNi/3Cr13 composite coating was also studied under the micro-tribological testing set. As a result, the FeAlCrNi/3Cr13 composite coating is very dense and has a low oxide content and porosity of 3.2%. It also has high adhesive strength of 54.4 MPa and better wear resistant than substrate under the oil lubricate conditions. |
| Key words: crankshaft remanufacture high velocity arc spraying microstructure composite coating |
