Effect of surface deformation on biocompatibility of biomedical alloys
发布时间：2021-07-16
点击次数：
DOI码：10.1016/j.msec.2020.111636
所属单位：中南大学
发表刊物：Materials Science & Engineering C-materials For Biological Applications
关键字：BiocompatibilityCorrosion resistanceMetallic ionsDeformationAlloy
摘要：In this study, biocompatibility of Co-29Cr-5Mo (CCM), 316L steel (316L) and Ti-6Al-4V (TC4) alloys after surface plastic deformation under the condition comparable to the human ankle activities were investigated in details. Biocompatibility of all alloys decreases after surface deformation, while it is most significantly observed in CCM alloy. The different responses of biocompatibility are related to the corresponding microstructure evolution during surface deformation: martensitic phase transformation, dislocation slipping and mechanical twinning in CCM alloy result in the extremely localized microstructure, giving rise to the obviously decreased corrosion resistance or biocompatibility; quite homogenous microstructure after surface deformation leads to the slightly decreased corrosion resistance or biocompatibility in both 316L and TC4 alloys, since the surface deformation is dominated by slipping in 316L and by both slipping and a few mechanical twinning in TC4
论文类型：期刊论文
学科门类：工学
一级学科：材料科学与工程
文献类型：J
卷号：119
页面范围：111636
ISSN号：0928-4931
是否译文：否
发表时间：2021-02-07
收录刊物：SCI