矿业科学学报2024，Vol.9Issue(4)：619-630,12.
混杂颗粒增强Ni基复合材料的冲蚀磨损性能研究
Erosion wear behaviors of hybrid-particles reinforced Ni matrix composites
摘要
Abstract
The extreme working conditions in coal mining,petrochemical industries,and other related fields have imposed higher demands on the wear resistance of materials used for critical components in mechanical equipment.This study prepared a hybrid-particles reinforced metal matrix composite(MMC)that combines large-size zirconia-toughened alumina particles(ZTAp)as load-bearing elements with small-size tungsten carbide particles(WCp)for reinforcement.Specifically,we probe into the composites'structure,focusing particularly on the effects of media,erosion angle,ZTAp size,and WCp content on their erosion-wear resistance and the underlying mechanisms.The results indicate that the addition of appropriate amounts of ZTAp and WCp significantly enhances the composites'erosion-wear resistance.Within a fixed volume fraction of ZTAp,larger particle sizes are associated with better ero-sion-wear resistance.The primary failure mechanisms observed are brittle spalling and fatigue frac-ture.Through second-phase reinforcement,solid solution strengthening,and precipitation strengthening,the WC particles enhance the hardness and wear resistance of the matrix,suppressing the interactive effects of corrosion and wear in acidic media.The primary failure mechanism during erosion is brittle fracture and spalling.关键词
混杂颗粒增强/金属基复合材料/耐冲蚀磨损性能Key words
hybrid-particles-reinforced/metal matrix composites(MMCs)/erosion wear resistance分类
矿业与冶金引用本文复制引用
曹洪治,陈华辉,马文星,范磊..混杂颗粒增强Ni基复合材料的冲蚀磨损性能研究[J].矿业科学学报,2024,9(4):619-630,12.基金项目
国家自然科学资金(51571210) （51571210）
神华宁煤委托项目(2017-546) （2017-546）
