摘要
通过优化电弧离子镀工艺参数改善TiAlN涂层结构及性能对TiAlN涂层应用具有重要的实用价值。本研究利用脉冲偏压电弧离子镀制备了TiAlN涂层,研究了偏压占空比对TiAlN涂层结构及性能的影响,结果发现:随着占空比增加,涂层表面缺陷密度和表面粗糙度先降低后增大,占空比为70%时,制备的涂层表面缺陷密度和表面粗糙度最低。随着占空比增加,涂层的硬度和耐磨性得到明显改善,但占空比超过50%后继续增加占空比反而降低了涂层的硬度和耐磨性。TiAlN涂层与Si_3N_4球对磨时的主要磨损机制为黏着磨损和氧化磨损。
Parameter optimization of arc ion plating process so as to improve the structure and properties of TiAlN coatings has important practical value for the application of TiAlN coatings.In this paper,TiAlN coatings were prepared by pulsed bias arc ion plating.The influence of duty ratio of pulsed bias on the structure and properties of TiAlN coatings was studied.Results show that the density of surface defects and surface roughness of TiAlN coatings first decrease and then increase with the increase in the duty ratio;and the density of surface defects and surface roughness are the lowest when the duty ratio is 70%.The micro-hardness and wear resistance of TiAlN coated samples are first improved with the increase in the duty ratio,while the further increase in the duty ratio to above 50% has an adverse effect on the micro-hardness and wear resistance.The main wear mechanism of TiAlN coatings are adhesive wear and oxidation wear when Si3 N4 ball is used as the friction pair.
作者
付志强
苗志玲
岳文
王成彪
康嘉杰
朱丽娜
彭志坚
Fu Zhiqiang;Miao Zhiling;Yue Wen;Wang Chengbiao;Kang Jiajie;Zhu Lina;Peng Zhijian(School of Engineering and Technology,China University of Geosciences,Beijing 100083,China)
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2018年第11期3482-3486,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金(51275494)
中央高校基本科研业务费专项资金(2652015084)
