###
DOI:
热喷涂技术:2024,16(1):80-85
←前一篇   |   后一篇→
本文二维码信息
码上扫一扫!
超音速等离子喷涂Al-35Si-4Fe涂层制备工艺优化及摩擦学性能
顾宗强1, 雷秋骏2, 姚春欢3, 徐逸铭4, 徐浩博5
(1.中国铁路广州局集团有限公司广州机务段;2.中国铁路上海局集团有限公司杭州机辆段;3.中车戚墅堰机车有限公司;4.大连海事大学休斯敦国际学院;5.中信重工机械股份有限公司)
Optimization of preparation process and tribological properties of Al-35Si-4Fe coating prepared by supersonic plasma spraying
Gu Zongqiang1, Lei Junqiu2, Yao Chunhuan3, Xu Yiming4, xuhaobo5
(1.Guangzhou Locomotive Depot, China Railway Guangzhou Group Co., Ltd;2.Hangzhou Rolling Stock Depot, China Railway Shanghai Group Co., Ltd;3.CRRC Qishuyan Co., Ltd;4.Houston International College, Dalian Maritime University;5.CITIC Heavy Industry Machinery Co., Ltd)
摘要
图/表
参考文献
相似文献
本文已被:浏览 40次   下载 23
投稿时间:2024-04-10    修订日期:2024-04-18
中文摘要: 为改善铝硅合金的摩擦学性能,以YL113铝硅合金为基体,喷涂功率、总气流量和喷涂距离为试验因素,显微硬度和孔隙率为考核指标,采用三因素三水平的正交试验法得到了超音速等离子喷涂Al-35Si-4Fe涂层的最佳制备工艺;研究了此工艺下涂层的摩擦学性能。结果表明:喷涂功率为65 kW,总气流量为110 L/min,喷涂距离为95 mm时,涂层质量为最佳。此时,Al-35Si-4Fe涂层的显微硬度达到465±24.4 HV0.2,涂层孔隙率为1.3%。实验条件下,Al-35Si-4Fe涂层的磨损机制以疲劳磨损为主,磨粒磨损为辅。Al-35Si-4Fe涂层的磨损率为1.88 ×10-4 mm3/Nm,摩擦因数为0.37。优化后的Al-35Si-4Fe涂层能有效保护内部YL113铝硅合金,延长其使用寿命,并应对更加复杂的工况。
Abstract:To improve the tribological properties of Al-Si alloy, YL113 Al-Si alloy was used as the substrate, with spraying power, total gas flow rate, and spraying distance as experimental factors, microhardness and porosity as assessment indicators. The optimal preparation process of supersonic plasma spraying Al-35Si-4Fe coating was obtained using a three factor and three level orthogonal experimental method, studied the tribological properties of the coating under this process. The results show that the coating quality is optimal when the spraying power is 65 kW, the total air flow rate is 110 L/min, and the spraying distance is 95 mm. At this point, the microhardness of the Al-35Si-4Fe coating reaches 465±24.4 HV0.2, and the porosity of the coating is 1.3%. Under experimental conditions, the wear mechanism of Al-35Si-4Fe coating is mainly fatigue wear, supplemented by abrasive wear. The wear rate of Al-35Si-4Fe coating is 1.88×10-4 mm3/Nm, and the friction coefficient is 0.37. The optimized Al-35Si-4Fe coating can effectively protect the internal YL113 Al-Si alloy, extend its service life, and cope with more complex working conditions.
文章编号:     中图分类号:    文献标志码:
基金项目:
引用文本:
顾宗强,雷秋骏,姚春欢,徐逸铭,徐浩博.超音速等离子喷涂Al-35Si-4Fe涂层制备工艺优化及摩擦学性能[J].热喷涂技术,2024,16(1):80-85.
Gu Zongqiang,Lei Junqiu,Yao Chunhuan,Xu Yiming,xuhaobo.Optimization of preparation process and tribological properties of Al-35Si-4Fe coating prepared by supersonic plasma spraying[J].Thermal Spray Technology,202416(1):80-85.

我们一直在努力打
造,精品期刊,传
播学术成果

全国咨询服务热线
010-63299752,9751,9758

杂志文章

杂志信息

联系我们

电话:010-63299752,9751,9758

Email:rptjs@bgrimm.com

邮编:100160

地址:北京市南四环西路188号总部基地十八区23号楼

关注微信公众号