| 高雄,何斌,余磊,汪瑶,刘晓红,胡体刚,蔡振兵.SIMP钢在高温液态铅铋合金中的腐蚀行为[J].装备环境工程,2024,21(2):119-128. GAO Xiong,HE Bin,YU Lei,WANG Yao,LIU Xiaohong,HU Tigang,CAI Zhenbing.Corrosion Behavior of SIMP Steel in High Temperature Liquid Lead-bismuth Alloy[J].Equipment Environmental Engineering,2024,21(2):119-128. |
| SIMP钢在高温液态铅铋合金中的腐蚀行为 |
| Corrosion Behavior of SIMP Steel in High Temperature Liquid Lead-bismuth Alloy |
| 投稿时间：2023-10-18 修订日期：2023-11-21 |
| DOI：10.7643/issn.1672-9242.2024.02.016 |
| 中文关键词: SIMP钢 液态铅铋 腐蚀 高温 氧化层 腐蚀产物中图分类号:TG172 文献标志码:A 文章编号:1672-9242(2024)02-0119-10 |
| 英文关键词:SIMP steel liquid lead-bismuth corrosion high temperature oxide layer corrosion products |
| 基金项目:四川省科技计划项目(2022JDJQ0019，2022ZYD0029)，船舶振动噪声重点实验室项目(6142204210707, JCKY2022207CI10) |
|
|
| Author | Institution |
| GAO Xiong | Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, China |
| HE Bin | Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, China |
| YU Lei | Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, China |
| WANG Yao | Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, China |
| LIU Xiaohong | Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, China |
| HU Tigang | Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, China |
| CAI Zhenbing | Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 研究SIMP钢在不同溶解氧浓度的高温液态铅铋合金中长期浸泡后腐蚀产物的变化规律。方法 在550 ℃静态液态铅铋合金(饱和氧状态和贫氧状态)中对SIMP钢进行500、1 000、2 000、3 500、5 000 h的腐蚀试验。通过观察腐蚀后试样的表面和截面形貌，进行物化分析，对比不同时间下腐蚀层厚度以及腐蚀产物结构的变化，得出溶解氧浓度和浸泡时间的变化对腐蚀产物的影响规律。结果 在贫氧环境中，SIMP钢的腐蚀类型主要为氧化腐蚀，氧化腐蚀产物具有双层结构，外层为Fe-Cr尖晶石氧化层，内层为富铬氧化物与基体的混合物层；在饱和氧环境，SIMP钢腐蚀产物则具有3层结构，外层为Fe3O4磁铁矿层，中层为Fe-Cr尖晶石氧化层，最内层为富铬氧化物与基体的混合物层。结论 溶解氧浓度和浸泡时间的变化对腐蚀产物的结构和厚度产生了显著影响，SIMP钢在贫氧环境中呈现出优异的耐腐蚀性能。 |
| 英文摘要: |
| The work aims to study the change rule of corrosion products of SIMP steel after long-term immersion in high temperature liquid lead-bismuth alloys with different dissolved oxygen concentrations. The corrosion experiments of SIMP steel in 550 ℃ static liquid lead-bismuth alloy (saturated oxygen state and oxygen-poor state) were carried out for 500, 1 000, 2 000, 3 500 and 5 000 h. By observing the surface and cross-section morphology of the corroded specimens, the physical and chemical analysis was conducted, the changes in the thickness of the corrosion layer as well as the structure of the corrosion products at different time were compared, and the effect laws of the changes in dissolved oxygen concentration and immersion time on the corrosion products were derived. In the oxygen-poor environment, the corrosion type of SIMP steel was mainly oxidized corrosion, and the oxidized corrosion product had a two-layer structure, with the outer layer being the Fe-Cr spinel oxidized layer, and the inner layer being the mixture layer of chromium-rich oxides and the substrate. In the saturated oxygen environment, the corrosion product of SIMP steel had a three-layer structure, with the outer layer being the Fe3O4 magnetite layer, the middle layer being the Fe-Cr spinel oxidized layer, and the innermost layer being the mixture layer of chromium-rich oxides and the substrate. Changes in dissolved oxygen concentration and immersion time significantly affect the structure and thickness of the corrosion products, and SIMP steel shows excellent corrosion resistance in oxygen-poor environments. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
