Galvanic Series of Metals and Effect of Alloy Compositions on Corrosion Resistance in Sanya Seawater
文献类型：期刊论文
| 作者 | Li Xiaogang; Chen Mindong; Zhang Fan; Liu Zhiyong; Yang Chaohui; Ding Guoqing |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2018 |
| 卷号 | 54期号:9页码:1311-1321 |
| 关键词 | Deep-ocean Environment Simulated Tidal Zone South China Sea Stainless-steel Marine-environment Weathering Steels Natural Seawater Oxygen Reduction Carbon-steel Mild-steel |
| 英文摘要 | With the development of ocean engineering, various metallic materials have been applied to the marine environment. It is an urgent requirement to study the galvanic series and alloy composition optimization of metallic materials in the tropical marine environment. In this work, open circuit potentials (OCP) and galvanic series of 36 kinds of metallic materials in Sanya seawater were studied. By considering the response of OCP to tidal changes, the anti-corrosion effects of alloying elements were also ana lyzed. The results show that the OCP of metallic materials in Sanya seawater has a large range. The galvanic series order of metallic materials from high to low in Sanya seawater is: nickel alloy, duplex stainless steel, austenitic stainless steel and pure copper, ferritic stainless steel, martensitic stainless steel, copper alloy, low alloy steel, carbon steel, cast iron, aluminum alloy and aluminum anode. Low-carbon high-alloy content carbon steel and high Cr, Ni contents stainless steel have higher OCP. The potential fluctuations of carbon steel with tidal changes involves two phases: (1) under the dynamics control, the OCP of carbon steel is more negative at high tide; (2) under the diffusion control, the OCP is more positive at high tide. The potential fluctuations of metallic materials reflect the effect of the corrosion product film on the change of ionization balance, and metals with less potential fluctuations have better inhibition on ion diffusion. In Sanya seawater, the carbon steel, which has more alloying content and less carbon content, has less potential fluctuations with the tidal changes and has good oxygen diffusion resistance. The potential fluctuations of austenitic stainless steel with tidal changes are less than that of ferritic stainless steel and martensitic stainless steel. After 2700 h immersion, austenitic stainless steel and martensitic stainless steel, which have a higher content of Mo, have more stable OCP. In other words, the corrosion film gets a better corrosion resistance. The OCP of aluminum anode in Sanya seawater environment increases when the oxygen content is brought up. The OCP of Zn-containing or Ga-containing aluminum anode remains relatively stable. Al bronze and T2 copper have less potential fluctuations with tidal changes, and perform good corrosion resistance in Sanya seawater. |
| 学科主题 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17206]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Li Xiaogang,Chen Mindong,Zhang Fan,et al. Galvanic Series of Metals and Effect of Alloy Compositions on Corrosion Resistance in Sanya Seawater[J]. ACTA METALLURGICA SINICA,2018,54(9):1311-1321. |
| APA | Li Xiaogang,Chen Mindong,Zhang Fan,Liu Zhiyong,Yang Chaohui,&Ding Guoqing.(2018).Galvanic Series of Metals and Effect of Alloy Compositions on Corrosion Resistance in Sanya Seawater.ACTA METALLURGICA SINICA,54(9),1311-1321. |
| MLA | Li Xiaogang,et al."Galvanic Series of Metals and Effect of Alloy Compositions on Corrosion Resistance in Sanya Seawater".ACTA METALLURGICA SINICA 54.9(2018):1311-1321. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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。