High-Temperature Oxidation Behavior of Nano-Structured Layer of SUS430 Stainless Steel
文献类型：期刊论文
| 作者 | Chen Chunhuan1; Ren Ruiming1; Chen Pintong2 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2015 |
| 卷号 | 44期号:9页码:2330-2333 |
| 关键词 | RESISTANCE stainless steel selective oxidation surface self nanocrystallization |
| ISSN号 | 1002-185X |
| 其他题名 | High-Temperature Oxidation Behavior of Nano-Structured Layer of SUS430 Stainless Steel |
| 英文摘要 | A nano-structured layer was prepared by high-energy-shoot-peening on the surface of SUS430 stainless steel (SS). The oxidation behavior of the nano-structured layer in various atmospheres was studied through X-ray diffraction (XRD), thermal analysis (TGA), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), and the effect of surface self nanocrystallization on the oxidation resistance of SUS430 SS was also investigated. The results show that the nano-structured layer is oxidized so violently in the early stage that it gains mass in a straight line rule, but it needs just a short time for being passivated. Thin and compacted oxide film is obtained, the thickness of which is one fourth of that of original surface, resulting in a lower oxidation rate than original surface. Therefore, the total mass of gain is merely one third of the original one, and the oxidation resistance is improved obviously. The reason for this is that the surface self nanocrystallization enlarges the grain boundary area, increases the nucleation rate of oxide, and also provides more diffusion channels for element, consequently promoting the selective oxidation of Cr. The oxide formed in the top surface layer is Fe rich oxide with loose structure, which has little contribution to the oxidation resistance. Beneath the Fe rich oxide, compacted Cr rich oxide forms next to the substrate, which resists the further oxidization of substrate well. Continuous oxide film grows more easily on the nano-structured surface layer than on the original surface. Benefited from its low internal stress and high toughness, the oxide film grown on the nano-structured layer has higher bonding strength to the substrate. |
| 语种 | 英语 |
| CSCD记录号 | CSCD:5522653 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/146582]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.大连交通大学 2.中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Chen Chunhuan,Ren Ruiming,Chen Pintong. High-Temperature Oxidation Behavior of Nano-Structured Layer of SUS430 Stainless Steel[J]. RARE METAL MATERIALS AND ENGINEERING,2015,44(9):2330-2333. |
| APA | Chen Chunhuan,Ren Ruiming,&Chen Pintong.(2015).High-Temperature Oxidation Behavior of Nano-Structured Layer of SUS430 Stainless Steel.RARE METAL MATERIALS AND ENGINEERING,44(9),2330-2333. |
| MLA | Chen Chunhuan,et al."High-Temperature Oxidation Behavior of Nano-Structured Layer of SUS430 Stainless Steel".RARE METAL MATERIALS AND ENGINEERING 44.9(2015):2330-2333. |
入库方式： OAI收割
来源：金属研究所
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