Preparation of Al2O3/Ti(C,N)/ZrO2/CaF2@Al(OH)3 Ceramic Tools and Cutting Performance in Turning

被引:8
作者
Chen, Zhaoqiang [1 ,2 ]
Zhang, Shuai [1 ]
Guo, Runxin [1 ]
Ji, Lianggang [1 ]
Guo, Niansheng [1 ]
Li, Qi [1 ]
Xu, Chonghai [1 ,2 ]
机构
[1] Qilu Univ Technol, Sch Mech & Automot Engn, Shandong Acad Sci, Jinan 250353, Peoples R China
[2] Qilu Univ Technol, Key Lab Adv Mfg & Measurement & Control Technol L, Shandong Acad Sci, Jinan 250353, Peoples R China
基金
中国国家自然科学基金;
关键词
ceramic tool; ZrO2; whisker; coating; cutting performance; wear mechanisms; MECHANICAL-PROPERTIES; COMPOSITES; FRICTION;
D O I
10.3390/ma12233820
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Aiming at the contradiction between the lubricating performance and mechanical performance of self-lubricating ceramic tools. CaF2@Al(OH)(3) particles were prepared by the heterogeneous nucleation method. An Al2O3/Ti(C,N) ceramic tool with CaF2@Al-2(OH)(3) particles and ZrO2 whiskers was prepared by hot press sintering (frittage). The cutting performances and wear mechanisms of this ceramic tool were investigated. Compared with the Al2O3/Ti(C,N) ceramic tool, the Al2O3/Ti(C,N)/ZrO2/CaF2@Al(OH)(3) ceramic tool had lower cutting temperatures and surface roughness. When the cutting speed was increased from 100 m/min to 300 m/min, a lot of CaF2 was smeared onto the surface of the ceramic tool, and the flank wear of the Al2O3/Ti(C,N)/ZrO2/CaF2@Al(OH)(3) ceramic tool was reduced. The main wear mechanisms of the Al2O3/Ti(C,N)/ZrO2/CaF2@Al(OH)(3) ceramic tool were adhesive wear and micro-chipping. The formation of solid lubricating film and the improvement of fracture toughness by adding ZrO2 whiskers and CaF2@Al(OH)(3) were important factors for the Al2O3/Ti(C,N)/ZrO2/CaF2@Al(OH)(3) ceramic tool to have better cutting performances.
引用
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页数:11
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