杨效田,李秀倩,魏亨利,李文生.WC对定向结构Ni60涂层耐蚀性能的影响研究[J].稀有金属材料与工程,2020,49(10):3604~3611.[yangxiaotian,Li Xiuqian,Wei Hengli,Li Wensheng.Effect of WC on corrosion resistance of directional structure Ni60 coating[J].Rare Metal Materials and Engineering,2020,49(10):3604~3611.]
WC对定向结构Ni60涂层耐蚀性能的影响研究
投稿时间:2019-11-11  修订日期:2020-01-19
中文关键词:  镍基合金  WC颗粒  定向结构  复合涂层  耐腐蚀性能
基金项目:国家自然科学基金资助(项目号51365024);浙江省自然科学基金资助(项目号LGG19E010003);
中文摘要:
      为了研究WC含量对Ni60合金涂层耐腐蚀性能的影响规律及相关机制,向Ni60合金粉体中添加不同质量分数的WC,通过高频感应重熔和强制冷却技术,在45#钢表面制备WC添加的Ni60/WC复合定向结构涂层,采用SEM、EDS、XRD、电化学性能测试和浸泡实验等检测手段分析研究了WC颗粒增强Ni60合金的定向结构复合涂层的耐腐蚀性能及其机制。结果表明:随着WC添加量的增加,极化电阻先增大后减小,WC添加量10%时达到最大值9710.8 Ω;腐蚀电流密度先减小后增大,WC添加量10%时最小为1.34×10-6 A/cm2。WC添加量对涂层显微形貌、元素分布、物相均有影响,进而影响涂层耐蚀性能。
Effect of WC on corrosion resistance of directional structure Ni60 coating
英文关键词:nickel-based alloy  WC particles  directional structure  composite coatings  corrosion resistance
英文摘要:
      In order to study the influence of WC content on the corrosion resistance of Ni60 alloy coating and the related mechanism, WC with the different mass fraction was added to Ni60 self-fused alloy powder, Ni60/WC directional structure composite coatings with different WC contents were prepared on 45 steel by induction remelting and forced cooling technology. The corrosion resistance and mechanism of WC particles reinforced Ni60 alloy directional structure composite coatings were investigated by SEM, EDS, XRD, electrochemical test and immersion corrosion. Results showed that the polarization resistance of composite coatings increased first and then decreased with the increase of WC, and the maximum polarization resistance reached 9710.8 Ω when the WC addition amount was 10%. The corrosion current density of composite coatings decreased first and then increased, and the minimum current density reached 1.34×10-6 A/cm2 with 10% WC content. The WC content had the important effect on microstructures, element distribution, phases of composite coatings, and further affected the corrosion resistance.
作者单位E-mail
杨效田 兰州理工大学 材料科学与工程学院 398830990@qq.com 
李秀倩 兰州理工大学 材料科学与工程学院  
魏亨利 兰州理工大学 材料科学与工程学院  
李文生 兰州理工大学 材料科学与工程学院  
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