生物骨科材料与临床研究2017，Vol.14Issue(4)：6-10,后插2,6.DOI:10.3969/j.issn.1672-5972.2017.04.002
电子束熔融法制备的医用Ti6Al4V在人工模拟体液中的耐腐蚀行为
Corrosion behavior of medical Ti6Al4V alloys prepared by electron beam melting in artificial body fluid
摘要
Abstract
Objective To study the corrosion behavior of medical Ti6Al4V alloys prepared bY electron beam melting with EBM-XOY and EBM-YOZ cross-section that respect to the build direction in Hank's solution.Methods Corrosion behavior and mechanism of the alloys was investigated in Hank's solution by means of open-circuit potential and potentiodynamic polarization techniques.The surface morphologies and phases were analyzed by SEM,XRD and optical micrographs.Commercially forged medical Ti6Al4V was also investigated to make a comparison.Results In comparison with forged Ti6Al4V,EBM-YOZ Ti6Al4V exhibited a good corrosion resistance with nearly the same open-circuit potential,corrosion potential and corrosion current.EBM-XOY Ti6Al4V exhibited inferior corrosion behavior to EBM-YOZ and forged Ti6Al4V alloys.This behavior can be attributed to more α phase and α+β phase interfaces,and the α phase appeared to be corroded to continued dissolution than the β phase.Conclusion The different cross-section of medical Ti6Al4V prepared by electron beam melting has the different corrosion resistance.EBM-YOZ section which is parallel to the build direction exhibited the similar corrosion resistance with commercially forged Ti6Al4V,while EBM-XOY section which is perpendicular to the build direction shown inferior corrosion behavior.关键词
电子束熔融/Ti6Al4V/耐腐蚀性能Key words
Electron beam melting/Ti6Al4V/Corrosion resistance分类
医药卫生引用本文复制引用
魏崇斌,马骏,王彩梅,马小林,杨晓杰,张卫平,李志疆..电子束熔融法制备的医用Ti6Al4V在人工模拟体液中的耐腐蚀行为[J].生物骨科材料与临床研究,2017,14(4):6-10,后插2,6.基金项目
国家重点研发计划项目(2016YFB1101504),北京科委首都市民健康课题培育项目(Z161100000116100) （2016YFB1101504）
