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Effect of copper addition on mechanical properties, and antibacterial property of 316L stainless steel corrosion resistance
Xi, Tong; Shahzad, M. Babar; Xu, Dake; Sun, Ziqing; Zhao, Jinlong; Yang, Chunguang; Qi, Min; Yang, Ke; Yang, CG; Yang, K (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
2017-02-01
Source PublicationMATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
ISSN0928-4931
Volume71Pages:1079-1085
AbstractThe effects of addition of different Cu content (0, 2.5 and 3.5 wt%) on mechanical properties, corrosion resistance and antibacterial performance of 316L austenitic stainless steel (SS) after solution and aging treatment were investigated by mechanical test, transmission electron microscope (TEM), X-ray diffraction (XRD), electrochemical corrosion, X-ray photoelectron spectroscopy (XPS) and antibacterial test. The results showed that the Cu addition and heat treatment had no obvious influence on the microstructure with complete austenite features. The yield strength (YS) after solution treatment was almost similar, whereas the aging treatment obviously increased the YS due to formation of tiny Cu-rich precipitates. The pitting and protective potential of the solution treated Cu-bearing 316L SS in 0.9 wt% NaCl solution increased with increasing Cu content, while gradually declined after aging, owing to the high density Cu-rich precipitation. The antibacterial test proved that higher Cu content and aging were two compulsory processes to exert good antibacterial performance. The XPS results further indicated that aging enhanced the Cu enrichment in passive film, which could effectively stimulate the Cu ions release from the surface of passive film. (C) 2016 Elsevier B.V. All rights reserved.; The effects of addition of different Cu content (0, 2.5 and 3.5 wt%) on mechanical properties, corrosion resistance and antibacterial performance of 316L austenitic stainless steel (SS) after solution and aging treatment were investigated by mechanical test, transmission electron microscope (TEM), X-ray diffraction (XRD), electrochemical corrosion, X-ray photoelectron spectroscopy (XPS) and antibacterial test. The results showed that the Cu addition and heat treatment had no obvious influence on the microstructure with complete austenite features. The yield strength (YS) after solution treatment was almost similar, whereas the aging treatment obviously increased the YS due to formation of tiny Cu-rich precipitates. The pitting and protective potential of the solution treated Cu-bearing 316L SS in 0.9 wt% NaCl solution increased with increasing Cu content, while gradually declined after aging, owing to the high density Cu-rich precipitation. The antibacterial test proved that higher Cu content and aging were two compulsory processes to exert good antibacterial performance. The XPS results further indicated that aging enhanced the Cu enrichment in passive film, which could effectively stimulate the Cu ions release from the surface of passive film. (C) 2016 Elsevier B.V. All rights reserved.
description.department[xi, tong ; xu, dake ; qi, min] dalian univ technol, sch mat sci & engn, dalian 116024, peoples r china ; [xi, tong ; shahzad, m. babar ; sun, ziqing ; zhao, jinlong ; yang, chunguang ; yang, ke] chinese acad sci, inst met res, shenyang 110016, peoples r china
KeywordCu-bearing Stainless Steel Mechanical Properties Corrosion Resistance Antibacterial Performance
Subject AreaMaterials Science, bioMaterials
Funding OrganizationNational Natural Science Foundation of China [51371168, 51501188]; National Key Research and Development Program of China [2016YFB0300205]; State Key Program of National Natural Science of China [51631009]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78324
Collection中国科学院金属研究所
Corresponding AuthorYang, CG; Yang, K (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Xi, Tong,Shahzad, M. Babar,Xu, Dake,et al. Effect of copper addition on mechanical properties, and antibacterial property of 316L stainless steel corrosion resistance[J]. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,2017,71:1079-1085.
APA Xi, Tong.,Shahzad, M. Babar.,Xu, Dake.,Sun, Ziqing.,Zhao, Jinlong.,...&Yang, K .(2017).Effect of copper addition on mechanical properties, and antibacterial property of 316L stainless steel corrosion resistance.MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,71,1079-1085.
MLA Xi, Tong,et al."Effect of copper addition on mechanical properties, and antibacterial property of 316L stainless steel corrosion resistance".MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS 71(2017):1079-1085.
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