摘要
本文制备了不同WC含量的涂层Ti(C,N)基金属陶瓷,对金属陶瓷基体与涂层组织及性能进行了研究,并进行切削实验。结果表明,随着WC的增加,涂层的硬度、弹性模量、硬模比(H/E)以及结合力都是先增加后减少,当添加量为15%时涂层金属陶瓷的机械性能最优;随着WC的增加,涂层金属陶瓷刀具的后刀面磨损量先增加后减少,且其中添加15%的WC的涂层金属陶瓷刀片耐磨性能最佳,这与涂层的硬模比和结合力有关;涂层金属陶瓷切削刀具的主要磨损机理是涂层剥落、磨粒磨损、粘着磨损以及氧化磨损。
In this paper,Ti(C,N)-based cermets with different WC contents were prepared.The structure and properties of the cermet substrate and coating were studied,and the cutting experiments were conducted.The results show that with the addition of WC,the hardness,elastic modulus,H/E and adhesion strength of the coating all increases first and then decreases.When the addition amount is 15%,the mechanical properties of the coating cermet are optimal.With the addition of WC,the flank wear of the coated cermet tool increases first and then decreases,and the coated cermet insert with 15%WC has the best wear resistance,which is related to the H/E and adhesion strength of the coating;the main wear mechanism of the coated cermet cutting toolare coating peeling,abrasive wear,adhesive wear and oxidative wear.
作者
游钱炳
熊计
杨天恩
郭智兴
杨露
苟青山
You Qianbing;Xiong Ji;Yang Tian'en;Guo Zhixing;Yang Lu;Gou Qingshan(School of Mechanical Engineering Sichuan University,Chengdu Sichuan 610065,China)
出处
《硬质合金》
CAS
2020年第4期280-287,共8页
Cemented Carbides
基金
国家自然科学基金《高性能Ti(C,N)基金属陶瓷材料制备过程中关键冶金科学问题》(51634006)
国家科技重大专项《复杂数控刀具创新能力平台建设》(2019ZX04007001-006)
四川省科技重大专项《数控刀具协同设计制造与服务关键技术研究及应用示范》(2020ZDZX0022)
四川大学-自贡市校地合作项目《高强度金属陶瓷新材料设计与制备关键技术研究》(2019CDZG-1)。
