Clarifying the influence of albumin on the initial stages of magnesium corrosion in Hank's balanced salt solution

作     者：Di Mei Cheng Wang Sviatlana V.Lamaka Mikhail L.Zheludkevich Di Mei;Cheng Wang;Sviatlana V.Lamaka;Mikhail L.Zheludkevich

作者机构：Magnesium Innovation Centre-MagICInstitute of Materials ResearchHelmholtz-Zentrum GeesthachtGeesthacht 21502Germany Institute for Materials ScienceFaculty of EngineeringKiel UniversityKiel 24103Germany 

出 版 物：《Journal of Magnesium and Alloys》 (镁合金学报（英文）)

年 卷 期：2021年第9卷第3期

页      面：805-817页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：China Scholarship Council for the award of fellowship and funding(No.201607040051,201806310128) “MMDi”IDEA project funded by HZG 

主　　题：Magnesium Corrosion Albumin Biodegradable Local pH 

摘      要：The corrosion behavior of Mg,a promising biodegradable metallic material,in protein-containing pseudophysiological environment is still not fully *** this work,the influence of albumin on the corrosion behavior of commercially pure magnesium(CP Mg)is investigated during short-term tests in Hank’s Balanced Salt Solution(HBSS).This work focuses on the reactions at the Mg/medium interface from the perspective of the interactions among albumin,media components and *** evolution tests demonstrate that the physiological amount of albumin(40 g L^(-1))accelerates Mg corrosion in HBSS during the first few hours but slows down the degradation *** presence of albumin decreases the concentration of free Ca^(2+)in HBSS and delays formation of protective co-precipitation products on Mg *** evolution of local pH(differs from typically monitored bulk pH)near Mg/medium interface in albumincontaining HBSS is reported for the first *** of local and bulk pH values elucidates the pH buffering effect of albumin during the immersion *** on these results,adsorption,chelating and pH buffering effects are summarized as three important aspects of albumin influence on Mg ***,constant replenishment of medium components is shown to be an influential factor during the Mg corrosion tests.