摘要
针对输电线路金具的耐磨性差、耐腐蚀性差以及制造污染大等问题,本工作提出并采用机械能助渗法制备了不同Mg含量的Zn-Mg合金渗锌层。通过使用扫描电子显微镜(SEM)对Zn-Mg合金渗锌层表面进行观察,使用磨损试验机对Zn-Mg合金渗锌层的室温和低温耐磨性能进行测试,使用电化学工作站对Zn-Mg合金渗层的耐腐蚀性能进行测试。结果表明,随着Mg含量的增加,渗锌层表面平整度先增后减,当Mg含量在4%(质量分数,下同)时,渗锌表面最平整;添加Mg后,Zn-Mg合金渗层主要由FeZn_(10.98)相、FeZn_(6.67)相、MgZn_(2)相和Mg_(2)Zn_(11)相组成。当Mg添加量在4%时,Zn-Mg合金渗层具有最好的室温耐磨性能;当Mg含量在6%时,Zn-Mg合金渗层具有最好的低温耐磨性能及耐腐蚀性能。
Aiming at the problems of poor wear and corrosion resistance of transmission line fittings as well as high manufacturing pollution,thiswork proposed to prepare Zn-Mg alloy zinc infiltration layers with different Mg contents by using mechanical energy assisted infiltration method.The surface characteristic of this layer was observed by scanning electron microscope(SEM),the wear resistance of this layer layer was tested by wear tester at both room and low temperatures,and the corrosion resistance of this layer was tested by an electrochemical workstation.The results showed that with the increase of Mg content,the surface flatness of the zinc infiltration layer increased first and then decreased,and when the Mg content was 4%(mass fraction),the zinc-infiltrated surface was the smoothest.After the addition of Mg,the permeability layer of Zn-Mg alloy is mainly composed of FeZn_(10.98)phase,FeZn_(6.67)phase,MgZn_(2)phase and Mg_(2)Zn_(11)phase.The Zn-Mg alloy zinc infiltration layer has the best room-temperature abrasion-resistant performance when the Mg content is 4%,and it has the best low-temperature abrasion-resistant performance and corrosion-resistant performance when the Mg content is 6%.
作者
顾建
刘敬华
王秀龙
刘胜春
司佳钧
王欣欣
GU Jian;LIU Jinghua;WANG Xiulong;LIU Shengchun;SI Jiajun;WANG Xinxin(China Electric Power Research Institute,Beijing 102401,China;State Grid Corporation of China,Beijing 100031,China;Electric Power Research Institute of State Grid Xinjiang Electric Power Company Limited,Urumqi 830000,China)
出处
《材料导报》
北大核心
2025年第12期163-169,共7页
Materials Reports
基金
国家电网公司总部管理科技项目“架空输电线路金具磨损失效行为及质量提升技术研究5108-202218280A-2-123-XG”。
关键词
Zn-Mg渗层
粉末渗锌
耐蚀性能
耐磨性能
Zn-Mg infiltration layer
powder zinc infiltration
corrosion resistance performance
wear resistance
