Corrosion of Several Typical Alloys in Concentrated Sodium Hydroxide Solution with Chloride Between 180 degrees C and 240 degrees C
文献类型：期刊论文
| 作者 | Ju, S.1,2; Zhang, Y.1,2; Shang, D.1,2; Chen, F.1,2; Wang, Y.; Zhang, Y.1,2 |
| 刊名 | CORROSION
 |
| 出版日期 | 2011-03-01 |
| 卷号 | 67期号:3页码:036001 |
| 关键词 | alkalies and salts autoclave testing chloride corrosion rate nickel stainless steel |
| ISSN号 | 0010-9312 |
| 其他题名 | Corrosion |
| 中文摘要 | The corrosion rates of two nickel-based alloys, Alloy 400 (UNS N04400) and Alloy C-276 (UNS N10276), and two stainless steels, Type 316L (UNS 31603) and Type 304 (UNS S30400), in a concentrated sodium hydroxide (NaOH) solution (45 mass%) containing sodium chloride (NaCl, 15 g/L) between 180 degrees C to 240 degrees C were studied. Methods, such as weight variation, color changes, scanning electron microscopy (SEM), and energy spectrum analysis of the samples during tests were conducted to evaluate the corrosion of those alloy samples. Results showed that the corrosion rate of Alloy C-276 in high-alkali solution with chloride at high temperature is the lowest, about 0.022 mm/y to 0.073 mm/y, then Alloy 400, about 0.09 mm/y to 0.60 mm/y, and finally Types 304 and 316L, about 1.0 mm/y to 16.4 mm/y. Thus, the corrosion rate of Alloy C-276 is 14 to 180 times lower than that of mild steel used in the "Bayer" process. The energy spectrum analysis showed that after testing, Alloy C-276 had a very thin oxide layer. Alloy 400 can exhibit pitting corrosion when some S(2-) anions exist in the solution and forms an oxide film when concentrated Cl(-) exists in the solution. For Types 304 and 316L, cracks formed on their surface, showing that they have a high tendency to stress corrosion. |
| 英文摘要 | The corrosion rates of two nickel-based alloys, Alloy 400 (UNS N04400) and Alloy C-276 (UNS N10276), and two stainless steels, Type 316L (UNS 31603) and Type 304 (UNS S30400), in a concentrated sodium hydroxide (NaOH) solution (45 mass%) containing sodium chloride (NaCl, 15 g/L) between 180 degrees C to 240 degrees C were studied. Methods, such as weight variation, color changes, scanning electron microscopy (SEM), and energy spectrum analysis of the samples during tests were conducted to evaluate the corrosion of those alloy samples. Results showed that the corrosion rate of Alloy C-276 in high-alkali solution with chloride at high temperature is the lowest, about 0.022 mm/y to 0.073 mm/y, then Alloy 400, about 0.09 mm/y to 0.60 mm/y, and finally Types 304 and 316L, about 1.0 mm/y to 16.4 mm/y. Thus, the corrosion rate of Alloy C-276 is 14 to 180 times lower than that of mild steel used in the "Bayer" process. The energy spectrum analysis showed that after testing, Alloy C-276 had a very thin oxide layer. Alloy 400 can exhibit pitting corrosion when some S(2-) anions exist in the solution and forms an oxide film when concentrated Cl(-) exists in the solution. For Types 304 and 316L, cracks formed on their surface, showing that they have a high tendency to stress corrosion. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Materials Science ; Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | NAOH |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000294545300007 |
| 公开日期 | 2013-11-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6290]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Natl Engn Lab, Hydrometallurg Cleaner Prod Technol, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ju, S.,Zhang, Y.,Shang, D.,et al. Corrosion of Several Typical Alloys in Concentrated Sodium Hydroxide Solution with Chloride Between 180 degrees C and 240 degrees C[J]. CORROSION,2011,67(3):036001. |
| APA | Ju, S.,Zhang, Y.,Shang, D.,Chen, F.,Wang, Y.,&Zhang, Y..(2011).Corrosion of Several Typical Alloys in Concentrated Sodium Hydroxide Solution with Chloride Between 180 degrees C and 240 degrees C.CORROSION,67(3),036001. |
| MLA | Ju, S.,et al."Corrosion of Several Typical Alloys in Concentrated Sodium Hydroxide Solution with Chloride Between 180 degrees C and 240 degrees C".CORROSION 67.3(2011):036001. |
入库方式： OAI收割
来源：过程工程研究所
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