Corrosion Behavior of Thermally Sprayed NiCrBSi Coating on 16MnR Low-Alloy Steel in KOH Solution

IMR OpenIR

	Corrosion Behavior of Thermally Sprayed NiCrBSi Coating on 16MnR Low-Alloy Steel in KOH Solution
	Zeng, Q.; Sun, J.; Emori, W.; Jiang, S. L.; Jiang, SL (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China.
	2016-05-01
发表期刊	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN	1059-9495
卷号	25 期号:5 页码:1773-1780
摘要	NiCrBSi coatings were selected as protective material and air plasma-sprayed on 16MnR low-alloy steel substrates. Corrosion behavior of 16MnR substrates and NiCrBSi coatings in KOH solution were evaluated by polarization resistance (R (p)), potentiodynamic polarization curves, electrochemical impedance spectroscopy, and immersion corrosion tests. Electrolytes were solutions with different KOH concentrations. NiCrBSi coating showed superior corrosion resistance in KOH solution compared with the 16MnR. Corrosion current density of 16MnR substrate was 1.7-13.0 times that of NiCrBSi coating in the given concentration of KOH solution. By contrast, R (p) of NiCrBSi coating was 1.2-8.0 times that of the substrate, indicating that the corrosion rate of NiCrBSi coating was much lower than that of 16MnR substrate. Capacitance and total impedance value of NiCrBSi coating were much higher than those of 16MnR substrate in the same condition. This result indicates that corrosion resistance of NiCrBSi coating was better than that of 16MnR substrate, in accordance with polarization results. NiCrBSi coatings provided good protection for 16MnR substrate in KOH solution. Corrosion products were mainly Ni/Fe/Cr oxides.
部门归属	[zeng, q. ; emori, w. ; jiang, s. l.] chinese acad sci, inst met res, key lab nucl mat & safety assessment, shenyang 110016, peoples r china ; [zeng, q. ; sun, j.] shenyang ligong univ, sch environm & chem engn, shenyang 110159, peoples r china
关键词	16mnr Aps Corrosion Koh Nicrbsi Coating
学科领域	Materials Science
收录类别	sci
语种	英语
WOS记录号	WOS:000374577300010
引用统计	被引频次：33[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75889
专题	中国科学院金属研究所
通讯作者	Jiang, SL (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Zeng, Q.,Sun, J.,Emori, W.,et al. Corrosion Behavior of Thermally Sprayed NiCrBSi Coating on 16MnR Low-Alloy Steel in KOH Solution[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2016,25(5):1773-1780.
APA	Zeng, Q.,Sun, J.,Emori, W.,Jiang, S. L.,&Jiang, SL .(2016).Corrosion Behavior of Thermally Sprayed NiCrBSi Coating on 16MnR Low-Alloy Steel in KOH Solution.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,25(5),1773-1780.
MLA	Zeng, Q.,et al."Corrosion Behavior of Thermally Sprayed NiCrBSi Coating on 16MnR Low-Alloy Steel in KOH Solution".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 25.5(2016):1773-1780.