纳米二氧化锆对TC4钛合金微弧氧化膜的影响  

Influence of Nano-zirconia on Micro-arc Oxidation Film of TC4 Titanium Alloy

作　　者：冀鹏飞 吕凯[1,2,3] 陈伟东 车广东[1] 王明礼[1] Ji Pengfei;LüKai;Chen Weidong;Che Guangdong;Wang Mingli(School of Materials Science and Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;Engineering ResearchCenter of Development and Processing Protection of Advanced Light Metals,Ministry of Education,Hohhot 010051,China;Inner MongoliaAdvanced Materials Engineering Technology Research Center,Hohhot 010051,China)

机构地区：[1]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010051 [2]先进轻金属材料开发与加工防护教育部工程研究中心,内蒙古呼和浩特010051 [3]内蒙古自治区新材料工程技术研究中心,内蒙古呼和浩特010051

出　　处：《稀有金属材料与工程》2023年第5期1583-1592,共10页Rare Metal Materials and Engineering

基　　金：Supported by University Science Foundation for Young Science and Technology Talents in Inner Mongolia Autonomous Region of China(NJYT22078);Basic Scientific Research Expenses Program of Universities Directly Under Inner Mongolia Autonomous Region(JY20220059);National Natural Science Foundation of China(51964035);Inner Mongolia Natural Science Foundation(2018LH05034)。

摘　　要：利用多功能微弧氧化电源,采用目前工艺较为成熟和应用最广泛的电参数对TC4钛合金进行微弧氧化,并在电解液中添加不同浓度的纳米二氧化锆,对比微弧氧化膜层的微观形貌和综合力学性能,探究纳米二氧化锆对膜层的影响。实验结果表明,随着纳米二氧化锆浓度的增加,膜层厚度几乎不发生变化,但膜层的成分和含量发生改变:膜层中出现板钛矿相,且含量不断增加。当纳米二氧化锆浓度为2 g/L时,膜层的粗糙度相比未添加纳米二氧化锆时大幅下降,膜层耐磨性能最好,且此时膜层表面微孔直径最小且尺寸均匀,耐腐蚀性能最佳。With the multifunctional micro-arc oxidation power source,the micro-arc oxidation was conducted on TC4 titanium alloy through the treatment with the mature and widely-used electrical parameters.Nano-zirconia of different concentrations was added into the electrolyte to investigate the variation of microstructure and comprehensive mechanical properties of the micro-arc oxidation film.The influence of nano-zirconia on the film was discussed.Results show that with increasing the nano-zirconia concentration,the film thickness barely changes,but the composition and component concentration of the film differ:the brookite phase appears in the film,and its concentration is increasing.When the nano-zirconia concentration is 2 g/L,the roughness of the film layer is greatly reduced,compared with that without nano-zirconia addition,and the wear resistance of the film layer is optimal.In addition,the micropore diameter on the layer surface is the smallest and uniform,and the corrosion resistance is optimal.

关 键 词：微弧氧化 微观形貌 纳米二氧化锆 耐磨性能 耐腐蚀性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]