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论文类型：期刊论文

发表时间：2015-07-01

发表刊物：JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY

收录刊物：SCIE、EI、ISTIC

卷号：31

期号：7

页面范围：723-732

ISSN号：1005-0302

关键字：Ti-6Al-4V-5Cu; Heat treatment; Microstructure; Antibacterial performance; Cytocompatibility

摘要：A copper-bearing Ti-6Al-4V-5Cu alloy was processed and subjected to different heat treatments to explore the relationship among microstructure, antibacterial performance, and cytocompatibility. Characterization of microstructure revealed that the solution treated alloy consisted of alpha phase, alpha' phase and beta phase, while besides these phases, the aged alloy also contained the precipitations of intermetallic Ti2Cu compound. The solution treated alloy showed better antibacterial performance with increasing the solution temperature. The Cu ions released from Ti-6Al-4V-5Cu alloy could effectively inhibit the formation of bacterial biofilm on the surface of alloy, and do not induce any cytotoxicity. The optimal heat treatment for Ti-6Al-4V-5Cu alloy was solution treated at 930 degrees C, at which it could exhibit both promising antibacterial performance and no cytotoxicity. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.