Effects of hydrogen on the anodic behavior of Alloy 690 at 60 degrees C
文献类型：期刊论文
| 作者 | T. Dan ; T. Shoji ; Z. P. Lu ; K. Sakaguchi ; J. Q. Wang ; E. H. Han ; W. Ke |
| 刊名 | Corrosion Science
 |
| 出版日期 | 2010 |
| 卷号 | 52期号:4页码:1228-1236 |
| 关键词 | Alloy 690 EIS Mott-Schottky plot XPS Anodic behavior Hydrogen charging revised pourbaix-diagrams stress-corrosion cracking nickel-based alloys passive films electronic-properties aqueous-solution oxide-films iron steel 304-stainless-steel |
| ISSN号 | 0010-938X |
| 中文摘要 | Polarization and electrochemical impedance spectroscopy (EIS) measurements, Mott-Schottky (M-S) analysis and X-ray photoelectron spectroscopy (XPS) were used to investigate the effects of hydrogen on the anodic behavior of a one-dimensionally (1D) 25% cold worked (CW) Alloy 690 thermal treated (IT) in a boric acid and sodium sulphate solution at 60 degrees C. The pre-hydrogen-charged specimen exhibited a higher anodic current than that of the uncharged specimen below the transpassive potential. The charged hydrogen can be trapped in the metal. Electrochemical impedance spectroscopy (EIS) showed that the resistance capacitance loop of the hydrogen-charged specimen was significantly smaller than that of the uncharged specimen. Mott-Schottky analyses indicated that the passive film formed on Alloy 690 at -0.2 V(SCE) was an n-type semiconductor, with a p-n hetero-junction at 0.2 V(SCE). Charged hydrogen increased the carrier density and the thickness of the passive film both at 0.2 V(SCE) and 0.2 V(SCE). The Ni/Cr ratio in the surface film decreased after hydrogen charging, indicating that charged hydrogen could enhance the oxide film growth by increasing the OH(-) (O(2-)) concentrations through its reaction with vacancies. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31065]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | T. Dan,T. Shoji,Z. P. Lu,et al. Effects of hydrogen on the anodic behavior of Alloy 690 at 60 degrees C[J]. Corrosion Science,2010,52(4):1228-1236. |
| APA | T. Dan.,T. Shoji.,Z. P. Lu.,K. Sakaguchi.,J. Q. Wang.,...&W. Ke.(2010).Effects of hydrogen on the anodic behavior of Alloy 690 at 60 degrees C.Corrosion Science,52(4),1228-1236. |
| MLA | T. Dan,et al."Effects of hydrogen on the anodic behavior of Alloy 690 at 60 degrees C".Corrosion Science 52.4(2010):1228-1236. |
入库方式： OAI收割
来源：金属研究所
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