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Microstructure, mechanical property and metal release of As-SLM CoCrW alloy under different solution treatment conditions
Lu, Yanjin; Wu, Songquan; Gan, Yiliang; Zhang, Shuyuan; Guo, Sai; Lin, Junjie; Lin, Jinxin; Franklin@fjirsm.ac.cn
2016
发表期刊JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
ISSN1751-6161
卷号55页码:179-190
摘要In the study, the microstructure, mechanical property and metal release behavior of selective laser melted CoCrW alloys under different solution treatment conditions were systemically investigated to assess their potential use in orthopedic implants. The effects of the solution treatment on the microstructure, mechanical properties and metal release were systematically studied by OM, SEM, XRD, tensile test, and ICP-AES, respectively. The XRD indicated that during the solution treatment the alloy underwent the transformation of gamma-fcc to epsilon-hcp phase; the epsilon-hcp phase nearly dominated in the alloy when treated at 1200 degrees C following the water quenching; the results from OM, SEM showed that the microstructural change was occurred under different solution treatments; solution at 1150 degrees C with furnace cooling contributed to the formation of larger precipitates at the grain boundary regions, while the size and number of the precipitates was decreased as heated above 1100 degrees C with the water quenching; moreover, the diamond-like structure was invisible at higher solution temperature over 1150 degrees C following water quenching; compared with the furnace cooling, the alloy quenched by water showed excellent mechanical properties and low amount of metal release; as the alloy heated at 1200 degrees C, the mechanical properties of the alloy reached their optimum combination at UTS=1113.6 MPa, 0.2% YS=639.5 MPa, and E%=20.1%, whilst showed the lower total quantity of metal release. It is suggested that a proper solution treatment is an efficient strategy for improving the mechanical properties and corrosion resistance of As-SLM CoCrW alloy that show acceptable tensile ductility. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属[lu, yanjin ; wu, songquan ; gan, yiliang ; guo, sai ; lin, junjie ; lin, jinxin] chinese acad sci, fujian inst res struct matter, key lab optoelect mat chem & phys, beijing 100864, peoples r china ; [zhang, shuyuan] chinese acad sci, inst met res, beijing 100864, peoples r china
关键词Cocrw Alloy Heat Treatment Mechanical Property Metal Release Selective Laser Melting
资助者National Pilot Projects [XDA09020301]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/74996
专题中国科学院金属研究所
通讯作者Franklin@fjirsm.ac.cn
推荐引用方式
GB/T 7714
Lu, Yanjin,Wu, Songquan,Gan, Yiliang,et al. Microstructure, mechanical property and metal release of As-SLM CoCrW alloy under different solution treatment conditions[J]. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,2016,55:179-190.
APA Lu, Yanjin.,Wu, Songquan.,Gan, Yiliang.,Zhang, Shuyuan.,Guo, Sai.,...&Franklin@fjirsm.ac.cn.(2016).Microstructure, mechanical property and metal release of As-SLM CoCrW alloy under different solution treatment conditions.JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,55,179-190.
MLA Lu, Yanjin,et al."Microstructure, mechanical property and metal release of As-SLM CoCrW alloy under different solution treatment conditions".JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS 55(2016):179-190.
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