中国机械工程2025，Vol.36Issue(9)：1989-1995,7.DOI:10.3969/j.issn.1004-132X.2025.09.010
Si3N4耐高温全陶瓷向心关节轴承磨损性能研究
Study on Wear Performance of Si3N4 High Temperature Resistant All Ceramic Spherical Plain Bearings
摘要
Abstract
The contact characteristics and wear properties of Si3N4 high temperature resistant all ceramic radial spherical plain bearings were studied under high temperature conditions.Based on thermal-mechanics coupling finite element simulation method,the temperature fields of the inner and outer rings of the spherical plain bearings were analyzed.The wear tests were carried out by using self-developed high-temperature spherical plain bearing test machine.The wear surface morphology and composition of differ-ent contact areas of inner and outer rings were analyzed by scanning electron microscope and energy disper-sive spectrometer,and the wear mechanism of all ceramic spherical plain bearings was proved.Results show that the wear processs of all ceramic spherical plain bearings at 400℃ are mainly divided into a running-in period with a significant increase in wear and a stable wear period with a slow increase in wear.The wear areas are mainly divided into core bearing areas dominated by adhesive wear and oxidation wear,and non-core bearing areas dominated by abrasive wear.The wear loss of the spherical plain bearings is as 108 μm under the condition of 200 N radial load,2 Hz swing frequency and±25° swing angle,25 000 swing times.The wear resistance is good and the running state is stable.关键词
Si3N4陶瓷/向心关节轴承/高温环境/热力耦合/磨损机理Key words
Si3N4 ceramics/spherical plain bearing/high temperature environment/thermo-mechanics coupling/wear mechanism分类
机械制造引用本文复制引用
李颂华,薛宝圆,左闯..Si3N4耐高温全陶瓷向心关节轴承磨损性能研究[J].中国机械工程,2025,36(9):1989-1995,7.基金项目
国家自然科学基金(U23A20631) （U23A20631）
辽宁省航发材料摩擦学重点实验室开放基金(LKLAMTF202306) （LKLAMTF202306）
