Influence of graphene oxide(GO)on microstructure and biodegradation of ZK30-xGO composites prepared by selective laser melting

查看全文 作　　者：Jun-Xi [1]Tao;Ming-Chun [1]Zhao;Ying-Chao [1]Zhao;Deng-Feng [1]Yin;Long [2]Liu;Chengde [2]Gao;Cijun [2]Shuai;Andrej [3]Atrens

机构地区：[1]School of Materials Science and Engineering,Central South University,Changsha 410083,China;[2]College of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China;[3]Division of Materials,The University of Queensland,Brisbane,Qld 4072,Australia

出　　处：《Journal of Magnesium and Alloys》索引2020年第8卷第3期,共11页

基　　金：Natural Science Foundation of China(No.51874368). 摘　　要：Different graphene oxide(GO)contents were chosen as the addition to prepare ZK30-xGO composites by selective laser melting(SLM).The microstructure and biodegradation of the SLMed ZK30-xGO composites were investigated.The results indicated that(i)SLM effectively produced a small grain size,(ii)the incorporation of GO into ZK30 caused a further decrease in grain size,and(iii)GO has a strong effect on the formation of the MgZn2 precipitates.The SLMed ZK30-0.6GO had the lowest biodegradation rate,which is attributed to the fact that the effect of the increased grain refinement and decreased amount of the MgZn?precipitates counteracted the effect of the increased GO content on the biodegradation rate.Furthermore,the SLMed ZK30-xGO composites had good cytocompatibility.This work provided a novel approach to the composition design and fabrication of novel biodegradable GO reinforced Mg-based biomedical implants. 关键词：Mg alloy ZK30-xGO composite Selective laser melting(SLM) BIODEGRADATION CYTOCOMPATIBILITY

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Influence of graphene oxide(GO)on microstructure and biodegradation of ZK30-xGO composites prepared by selective laser melting

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