Oxidation behavior and electrical property of ferritic stainless steel interconnects with a Cr-La alloying layer by high-energy micro-arc alloying process
文献类型：期刊论文
| 作者 | Z. J. Feng ; C. L. Zeng |
| 刊名 | Journal of Power Sources
 |
| 出版日期 | 2010 |
| 卷号 | 195期号:21页码:7370-7374 |
| 关键词 | Solid oxide fuel cells Ferritic metallic interconnect High-energy micro-arc alloying technique Lanthanum chromite Oxidation Contact resistance oxide fuel-cells chromia-forming alloy lacro3-based coatings cathode scales |
| ISSN号 | 0378-7753 |
| 中文摘要 | Chromium volatility, poisoning of the cathode material and rapidly decreasing electrical conductivity are the major problems associated with the application of ferritic stainless steel interconnects of solid oxide fuel cells operated at intermediate temperatures. Recently, a novel and simple high-energy micro-arc alloying (HEMAA) process is proposed to prepare LaCrO(3)-based coatings for the type 430 stainless steel interconnects using a LaCrO(3)-Ni rod as deposition electrode. In this work, a Cr-La alloying layer is firstly obtained on the alloy surface by HEMAA using Cr and La as deposition electrode, respectively, followed by oxidation treatment at 850 degrees C in air to form a thermally grown LaCrO(3) coating. With the formation of a protective scale composed of a thick LaCrO(3) outer layer incorporated with small amounts of Cr-rich oxides and a thin Cr(2)O(3)-rich sub-layer, the oxidation rate of the coated steel is reduced remarkably. A low and stable electrical contact resistance is achieved with the application of LaCrO(3)-based coatings, with a value less than 40 m Omega cm(2) during exposure at 850 degrees C in air for up to 500 h. (C) 2010 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31107]  |
| 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 | Z. J. Feng,C. L. Zeng. Oxidation behavior and electrical property of ferritic stainless steel interconnects with a Cr-La alloying layer by high-energy micro-arc alloying process[J]. Journal of Power Sources,2010,195(21):7370-7374. |
| APA | Z. J. Feng,&C. L. Zeng.(2010).Oxidation behavior and electrical property of ferritic stainless steel interconnects with a Cr-La alloying layer by high-energy micro-arc alloying process.Journal of Power Sources,195(21),7370-7374. |
| MLA | Z. J. Feng,et al."Oxidation behavior and electrical property of ferritic stainless steel interconnects with a Cr-La alloying layer by high-energy micro-arc alloying process".Journal of Power Sources 195.21(2010):7370-7374. |
入库方式： OAI收割
来源：金属研究所
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