Effect of grain refinement on the resistance of 304 stainless steel to breakaway oxidation in wet air
文献类型：期刊论文
| 作者 | X. Peng ; J. Yan ; Y. Zhou ; F. Wang |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2005 |
| 卷号 | 53期号:19页码:5079-5088 |
| 关键词 | austenitic steel DC magnetron sputtering grain refining nanocrystalline oxidation oxide hydroxide evaporation high-temperature oxidation fe-cr alloys water-vapor stainless-steels chromium evaporation model alloys thin-films diffusion behavior |
| ISSN号 | 1359-6454 |
| 中文摘要 | A 30 mu m thick nanocrystalline coating (NC) with a composition identical to that of conventional coarse-grained 304 stainless steel (SS) was prepared via direct current magnetron sputtering (DCMS). The DCMS NC exhibited a typical columnar microstructure, with a mean grain size of similar to 12 nm in the plane normal to the growth direction. Comparison of the oxidation of the 304 NC with 304 SS (similar to 20 mu m in an average grain size) was investigated at temperatures (700-900 degrees C) in flowing air with 0-40% H2O vapor. Catastrophic breakaway oxidation started from the upstream edge of the coarse-grained sample in wet air after an incubation period, due to the conversion of protective Cr-rich scale into non-protective Fe-rich one as a result of the water-vapor-promoted evaporation of chromia from scale. Increasing temperature or water-vapor concentration accelerated the appearance of breakaway oxidation. In contrast, breakaway oxidation did not occur in wet air for the DCMS NC, where abundant grain boundaries greatly enhanced the Cr diffusion to guarantee the stable growth of the Cr-rich scale. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35001]  |
| 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 | X. Peng,J. Yan,Y. Zhou,et al. Effect of grain refinement on the resistance of 304 stainless steel to breakaway oxidation in wet air[J]. Acta Materialia,2005,53(19):5079-5088. |
| APA | X. Peng,J. Yan,Y. Zhou,&F. Wang.(2005).Effect of grain refinement on the resistance of 304 stainless steel to breakaway oxidation in wet air.Acta Materialia,53(19),5079-5088. |
| MLA | X. Peng,et al."Effect of grain refinement on the resistance of 304 stainless steel to breakaway oxidation in wet air".Acta Materialia 53.19(2005):5079-5088. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。