Optimized antibacterial treatment for the Cu-bearing 420 stainless steel

doi:10.1080/10667857.2018.1497574

CORC > 金属研究所 > 中国科学院金属研究所

	Optimized antibacterial treatment for the Cu-bearing 420 stainless steel
	Huang, YL ; Zhao, JL ; Zhang, JR ; Yang, CG ; Zhao, Y ; Yang, K 1
刊名	MATERIALS TECHNOLOGY
	2018-01-15
卷号	33 期号:11 页码:699-708
关键词	Austenitizing temperature antibacterial property hardness undissolved carbides Cu-rich phase
ISSN号	1066-7857
DOI	10.1080/10667857.2018.1497574
英文摘要	Cu-bearing antibacterial martensitic stainless steel (MSS) has a broad application prospect in cutting field, which needs a combination of good antibacterial property and high hardness. In this work, 420Cu stainless steel (SS) with high Cu addition and different austenitizing temperatures were investigated to address the above issue. The results of plate count measurement and biofilm observation indicated that 420Cu SS austenitized at lower temperature shows better antibacterial performance. The Rockwell hardness was up to 52.7 HRC and corrosion resistance evaluated by electrochemical polarization was also acceptable. Scanning electron microscope (SEM) observation further revealed that the treated 420Cu SS possessed of the martensitic microstructure with more undissolved carbides and Cu-rich precipitations, which led to the higher hardness. Mott-Schottky and inductively coupled plasma-mass spectrometry (ICP-MS) tests implied that above precipitations decrease the compactness of passive film and then promote the release of Cu ions, which ensured the 420Cu SS good antibacterial property.
学科主题	Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:000441661900001
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/80233]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Huang, YL,Zhao, JL,Zhang, JR,et al. Optimized antibacterial treatment for the Cu-bearing 420 stainless steel[J]. MATERIALS TECHNOLOGY,2018,33(11):699-708.
APA	Huang, YL,Zhao, JL,Zhang, JR,Yang, CG,Zhao, Y,&Yang, K.(2018).Optimized antibacterial treatment for the Cu-bearing 420 stainless steel.MATERIALS TECHNOLOGY,33(11),699-708.
MLA	Huang, YL,et al."Optimized antibacterial treatment for the Cu-bearing 420 stainless steel".MATERIALS TECHNOLOGY 33.11(2018):699-708.