| Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel |
| N. Li; Y. Li; S. Wang; F. H. Wang
|
| 2006
|
| 发表期刊 | Electrochimica Acta
 |
| ISSN | 0013-4686
|
| 卷号 | 52期号:3页码:760-765 |
| 摘要 | By employing Mott-Schottky analysis in conjunction with the point defect model (PDM), we compared donor density and donor diffusion coefficients in the passive films formed on the surface of nanocrystallized bulk 304 stainless steel (NB304ss) and cast 304 stainless steel (304ss) in 0.05 mol/L H2SO4 + 0.25 mol/L Na2SO4 solution. The donor density at the metal/film interface of the NB304ss was lower than that at the metal film interface of the cast 304ss. Based on the Mott-Schottky analysis, an exponential relationship between donor density and formation potentials of the passive films on the NB304ss and the cast 304ss was built up. The results showed that the donor diffusion coefficients in the passive film formed on the surface of NB304ss was lower than that in the cast 304ss. The lower donor density and the lower diffusion coefficient restrained the electrochemical reaction in the passive film and improved the stability of the passive film. That is the reason why the passive film formed on the NB304ss was more protective. (c) 2006 Elsevier Ltd. All rights reserved. |
| 部门归属 | chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. chinese acad sci, int ctr materiasl phys, shenyang natl lab mat sci, shenyang 110016, peoples r china.;li, y (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china;liying@imr.ac.cn
|
| 关键词 | Nanocrystallized Bulk 304ss
Passive Film
Mott-schottky Analysis
Donor
Density
Donor Diffusion Coefficient
Anodic Passive Films
304l Stainless-steel
Point-defect Model
Aisi
304-stainless-steel
Different Temperatures
Electronic-structure
Surface
Texture
Copper
H2so4
|
| URL | 查看原文
|
| WOS记录号 | WOS:000242616100002
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/34308
|
| 专题 | 中国科学院金属研究所
|
推荐引用方式
GB/T 7714 |
N. Li,Y. Li,S. Wang,et al. Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel[J]. Electrochimica Acta,2006,52(3):760-765.
|
| APA |
N. Li,Y. Li,S. Wang,&F. H. Wang.(2006).Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel.Electrochimica Acta,52(3),760-765.
|
| MLA |
N. Li,et al."Electrochemical corrosion behavior of nanocrystallized bulk 304 stainless steel".Electrochimica Acta 52.3(2006):760-765.
|
修改评论