标题:Improved Corrosion Resistance of Powder Metallurgical Al94.5Cu4Mg1.5by Nickel Addition
作者:Zhang, Chunzhi ;Kong, Lingliang ;Li, Huiping
作者机构:[Zhang, Chunzhi ;Kong, Lingliang ;Li, Huiping ] College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao; 更多
通讯作者:Li, Huiping
来源:Cailiao Daobao/Materials Review
出版年:2017
卷:31
期:10
页码:39-43
DOI:10.11896/j.issn.1005-023X.2017.020.009
摘要:The present paper aims to investigate the influence of Ni content on the corrosion behavior (in 3.5% NaCl solution) of Al-Cu-Mg alloys whose nominal compositions are Al94.5-xCu4Mg1.5Nix(x=0, 2, 4, 6, 8(wt%)), prepared by the conventional powder metallurgy process. Electrochemical test and weight loss experiment were carried out, and the phase composition, corrosion morphology and selected-area element analysis of the sintered samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), respectively. The results showed that the sintered samples possessed excellent inter-particle bonding. An intermetallic compound Al3Ni2can be generated from Ni and Al in the sintering process. Pitting corrosion occurred in the Al-Cu-Mg matrix immersed in 3.5% NaCl solution. Ni addition can raise the corrosion potential of Al-Cu-Mg matrix, inhibit the corrosion current, thus mitigating the materia's corrosion, and improving the corrosion resistance.
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收录类别:EI
资源类型:期刊论文
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