The electrochemical corrosion of bulk nanocrystalline ingot iron in HCl solutions with different concentrations

被引：24
作者：
Wang, S. G. [1 ,2 ]
Sun, M. [3 ]
Cheng, P. C. [4 ]
Long, K. [1 ,2 ]
机构：
[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
[2] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
[3] Shenyang Univ Technol, Sch Sci, Shenyang 110870, Peoples R China
[4] Shenyang Ligong Univ, Shenyang 110089, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 127卷 / 03期
关键词：
Metals; Nanostructures; Photoelectron spectroscopy; Corrosion; PLASTIC-DEFORMATION; GRAIN-SIZE; BEHAVIOR; STEEL; ALLOYS; 304-STAINLESS-STEEL; BACTERIA; CRACKING; FILMS; WORK;
D O I：
10.1016/j.matchemphys.2011.02.035
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We studied the corrosion properties of bulk nanocrystalline ingot iron (BNII) and conventional polycrystalline ingot iron (CPII) in HCl solutions from 0.1 mol L-1 to 0.4 mol L-1 at room temperature. The corrosion resistance of BNII was enhanced in comparison with CPII. We investigated the surface energy state densities of BNII and CPII with ultra-violet photoelectron spectroscopy. The energy state density of BNII 4s electrons was 13.73% less than that of CPII. The function work of BNII was 0.47 eV larger that of CPII. The corrosion resistance of BNII was enhanced in comparison with CPII due to its less energy state density of 4s electrons, larger work function and weaker Cl- specific adsorption. (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：459 / 464
页数：6
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