Electrochemical Corrosion Behavior of CoCrNi Medium Entropy Alloy and SUS-304 Stainless Steel Diffusion Welded Joints at Various Bonding Temperatures

doi:10.1134/S0031918X21140234

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	Electrochemical Corrosion Behavior of CoCrNi Medium Entropy Alloy and SUS-304 Stainless Steel Diffusion Welded Joints at Various Bonding Temperatures
	Samiuddin, Muhammad 1,2,4; Jinglong, Li 1,4; Siddiqui, Muhammad Ali 2,3; Jiangtao, Xiong 1,4; Ling, Ren 2
刊名	PHYSICS OF METALS AND METALLOGRAPHY
	2021-12-01
卷号	122 期号:14 页码:1561-1571
关键词	CoCrNi medium entropy alloy SUS 304 stainless steel diffusion welding electrochemical behavior passivity breakdown
ISSN号	0031-918X
DOI	10.1134/S0031918X21140234
通讯作者	Jinglong, Li(lijinglg@nwpu.edu.cn) ; Jiangtao, Xiong(xiongjiangtao@nwpu.edu.cn)
英文摘要	This study focused on the electrochemical corrosion behavior of diffusion welded CoCrNi medium entropy alloy (MEA) and SUS 304 stainless steel joints. The MEA and SUS 304 alloys joined through a vacuum diffusion bonding process at three different bonding temperatures (950, 1000, and 1050 degrees C) at 5 MPa compressive pressures with an hour holding time. The electrochemical corrosion behavior of the welded alloys was analyzed via potentiodynamic polarization and electrochemical impedance spectroscopy scans. All the tests were performed in simulated seawater solution (3.5% NaCl) at room temperature in steady-state conditions. The characteristic electrochemical results of the diffusion welded joints at 1000 degrees C showed an excellent corrosion property due to its lowest corrosion current density I-corr, highest pitting potential E-p value, a large stable passive region, highest polarization resistance R-p, and the existence of double-layer impedance. The presence of voids and the formation of various intermetallic phases at the grain boundaries and aggressive Cl ion activity lead to the reduction in the corrosion resistance of the samples bonded at 950 and 1050 degrees C.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	MAIK NAUKA/INTERPERIODICA/SPRINGER
WOS记录号	WOS:000755926400016
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173450]
专题	金属研究所_中国科学院金属研究所
通讯作者	Jinglong, Li; Jiangtao, Xiong
作者单位	1.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.NED Univ Engn & Technol, Met Engn Dept, Karachi 75270, Pakistan 4.Northwestern Polytech Univ, Shaanxi Key Lab Frict Welding Technol, Xian 710072, Peoples R China
推荐引用方式 GB/T 7714	Samiuddin, Muhammad,Jinglong, Li,Siddiqui, Muhammad Ali,et al. Electrochemical Corrosion Behavior of CoCrNi Medium Entropy Alloy and SUS-304 Stainless Steel Diffusion Welded Joints at Various Bonding Temperatures[J]. PHYSICS OF METALS AND METALLOGRAPHY,2021,122(14):1561-1571.
APA	Samiuddin, Muhammad,Jinglong, Li,Siddiqui, Muhammad Ali,Jiangtao, Xiong,&Ling, Ren.(2021).Electrochemical Corrosion Behavior of CoCrNi Medium Entropy Alloy and SUS-304 Stainless Steel Diffusion Welded Joints at Various Bonding Temperatures.PHYSICS OF METALS AND METALLOGRAPHY,122(14),1561-1571.
MLA	Samiuddin, Muhammad,et al."Electrochemical Corrosion Behavior of CoCrNi Medium Entropy Alloy and SUS-304 Stainless Steel Diffusion Welded Joints at Various Bonding Temperatures".PHYSICS OF METALS AND METALLOGRAPHY 122.14(2021):1561-1571.