| 高能微脉冲表面强化修复45CrNiMoVA传动轴性能试验研究 |
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| 引用本文： | 梁志杰,杜建华,张平,孟令东.高能微脉冲表面强化修复45CrNiMoVA传动轴性能试验研究[J].装甲兵工程学院学报,2010,24(1). |
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| 作者姓名： | 梁志杰 杜建华 张平 孟令东 |
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| 作者单位： | 1. 装甲兵工程学院,装备表面工程重点实验室,北京,100072;装甲兵工程学院,装备再制造工程系,北京,100072
2. 装甲兵工程学院,装备再制造工程系,北京,100072 |
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| 摘 要： | 针对某大型船用传动轴工作轴颈表面产生腐蚀坑的问题,采用高能微脉冲表面强化修复技术对试验样轴进行修复。通过拉伸试验筛选了焊丝,采用光学显微镜和显微硬度计分析了修复层的显微组织和硬度,研究了扭转条件下修复层与基体的结合强度。结果表明:Ni-818焊丝修复层与基体的结合强度高,抗拉强度为557MPa;修复层显微组织均匀、致密,硬度差异小;当扭矩为200N.m,且表面最大剪应力为438MPa时,修复层和基体之间结合良好。由此得出结论:采用高能微脉冲表面强化修复技术,使用Ni-818焊丝可实现对45CrNiMoVA传动轴的表面强化修复。
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| 关 键 词： | 高能微脉冲 表面强化 表面修复 抗拉强度 |
Research on Performance of 45CrNiMoVA Transmission Shaft Repaired by High Energy Micro-pulse Technology |
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| LIANG Zhi-jie,DU Jian-hua,ZHANG Ping,MENG Ling-dong.Research on Performance of 45CrNiMoVA Transmission Shaft Repaired by High Energy Micro-pulse Technology[J].Journal of Armored Force Engineering Institute,2010,24(1). |
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| Authors: | LIANG Zhi-jie DU Jian-hua ZHANG Ping MENG Ling-dong |
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| Institution: | LIANG Zhi-jie1,2,DU Jian-hua1,ZHANG Ping2,MENG Ling-dong1,2(1.Key Laboratory of Surface Engineering,Academy of Armored Force Engineering,Beijing 100072,China,2.Department of Equipment Remanufacture Engineering,China) |
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| Abstract: | The erosion pits on the surface of the transmission shaft in the large size marine are repaired by using high energy micro-pulse surface hardening technology. Welding wires are selected through tensile test. The microstructure and hardness of repaired shaft are studied by optical microscope and microhardness tester, respectively. The results indicate that the tensile strength is 557 MPa and bond strength of repaired investigated shaft using Ni-818 welding wires are high. The microstructure of the repaired l... |
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| Keywords: | high energy micro-pulse surface hardening surface repair tensile strength |
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