Corrosion behavior of hot-pressing sintered Fe3Si-Cu composite in NaOH solution

	Corrosion behavior of hot-pressing sintered Fe3Si-Cu composite in NaOH solution
	Jia, Jian-Gang 1,2; Dou, Ping 1; Ji, Gen-Shun 1,2; Guo, Tie-Ming 1,2; An, Liang 1; Ma, Qin 1,2
刊名	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
	2012
卷号	33 期号:1 页码:54-59
关键词	Corrosive effects Electrochemical corrosion Powders Sintering Atom ratio Ball-milled Corrosion behavior Corrosion current Corrosion potentials Hot-pressing sintered Fe3Si-Cu NaOH solutions Sinter process Uniform corrosion
ISSN号	10096264
英文摘要	Mixture of Fe and Si powders in a atom ratio of 3:1 was ball-milled for 2 h and them blended with Cu powder. Fe3Si-Cu composites were prepared by hot-pressing sinter process under 20 MPa at 1000°C using the blended powders. Corrosion behavior of the as-sintered Fe3Si-Cu composites containing different content of Cu (5%, 10%) in NaOH solution were studied by immersing corrosion and electrochemical corrosion method. The results show that the two composites present uniform corrosion in NaOH solution with different concentrations. Fe3Si phase and Cu phase in the Fe3Si-Cu composite constitute a corrosion cell in NaOH solution. The Fe3Si phase is corroded as anode and the Cu phase is protected as cathode. The corrosion potential (Ecorr) of Fe3Si-5%Cu in NaOH solution increases with the increasing concentration of NaOH solution. The corrosion current of Fe3Si-5%Cu is lowest in 0.7 mol/l NaOH solution. The Ecorr of Fe3Si-10%Cu shows little difference in different concentration NaOH solutions. The corrosion current of Fe3Si-10%Cu shows lowest value in 0.6 mol/l NaOH solution and highest value in 0.7 mol/l NaOH solution.
语种	中文
出版者	Editorial Office of Transactions of Materials, 18 Xueqing Road, Beijing, 100083, China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111030]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2.Key Laboratory of Non-Ferrous Metal Alloys, Lanzhou University of Technology, Lanzhou 730050, China
推荐引用方式 GB/T 7714	Jia, Jian-Gang,Dou, Ping,Ji, Gen-Shun,et al. Corrosion behavior of hot-pressing sintered Fe3Si-Cu composite in NaOH solution[J]. Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,2012,33(1):54-59.
APA	Jia, Jian-Gang,Dou, Ping,Ji, Gen-Shun,Guo, Tie-Ming,An, Liang,&Ma, Qin.(2012).Corrosion behavior of hot-pressing sintered Fe3Si-Cu composite in NaOH solution.Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,33(1),54-59.
MLA	Jia, Jian-Gang,et al."Corrosion behavior of hot-pressing sintered Fe3Si-Cu composite in NaOH solution".Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 33.1(2012):54-59.