摘要
Magnesium matrix composites are a new generation of biocompatible implant materials,but they will inevitably undergo simultaneous wear and corrosion in the human body.In this study,hydroxyapatite(Ca10(PO4)6(OH)2,HA)is used in a magnesium matrix composite to study its effects on the corrosion–wear behavior.Two samples(a magnesium alloy composed of Mg,Zn,and Zr(ZK60)alloy and ZK60/10HA composite)were fabricated using the powder metallurgy(PM)process.Their corrosion–wear behavior was investigated using the sliding wear test in a simulated body fluid(SBF).At all the sliding velocities tested,the corrosion–wear resistance of ZK60/10HA was superior to ZK60.At a sliding velocity of 942.5 mm/min,ZK60/10HA demonstrated a 42%improvement in corrosion–wear resistance compared to ZK60.For ZK60,the main wear mechanism under dry conditions was abrasion,while the wear mechanisms in the SBF were abrasion and corrosion.For ZK60/10HA,the wear mechanisms under dry conditions were abrasion and delamination,while in SBF they were mainly abrasion and corrosion,accompanied by slight delamination.The results indicated that HA particles can be used as an effective corrosion–wear inhibitor in biocompatible magnesium matrix composites.
出处
《Friction》
SCIE
EI
CAS
CSCD
2022年第1期31-43,共13页
摩擦（英文版）
基金
Tliis study was supported by National Natural Science Foundation of China(Nos.51574118 and 51674118).
作者简介
Jinlong SU.He received his B.S.degree in material forming and control engineering in 2017 from University of South China,China.Then,he was a master student in Hunan University,China.His research interests include tribology and corrosion of metal matrix composites and biomedical materials;Corresponding authors:Jie TENG.He received his Ph.D.degree in materials processing engineering from Hunan University in 2006,China.Then,he joined the College of Materials Science and Engineering,Hunan University;China.His current position is a professor and his research areas cover the tribology and corrosion of metal matrix composites and biomedical materials;Corresponding authors:Zili XU.She received her Ph.D.degree in surgery from Central South University in 2009,China.Then,she joined the Hunan Provincial People's Hospital Orthopedics,China.Her current position is a professor and her research areas cover the bone tumors,peripheral nerve lesions injur);and biomedical materials;Yuan LI.He received his B.S.degree in medical science in 2016 from Hunan Normal University,China.He is a master student in Hunan Normal Universiy,China.His research interests include bone tumors,peripheral nerve injury,and biomedical materials.
