2205双相不锈钢在模拟湿法冶金过程中的腐蚀性能：均匀腐蚀和缝隙腐蚀的研究

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-04-28 DOI:10.1016/j.corsci.2025.112987

Davood Nakhaie, Edouard Asselin

{"title":"2205双相不锈钢在模拟湿法冶金过程中的腐蚀性能：均匀腐蚀和缝隙腐蚀的研究","authors":"Davood Nakhaie, Edouard Asselin","doi":"10.1016/j.corsci.2025.112987","DOIUrl":null,"url":null,"abstract":"<div><div>The corrosion behavior of SAF 2205 duplex stainless steel (DSS) is studied under acidic conditions of hydrometallurgical processes. The focus is on uniform and crevice corrosion. A Central Composite Design (CCD) was employed to evaluate the effects of temperature, sulfuric acid, hydrogen peroxide, and chloride concentration on the corrosion rate and critical crevice temperature (CCT) of 2205 DSS. Analysis of variance (ANOVA) revealed that the uniform corrosion rate is primarily influenced by temperature and chloride concentration, with both factors accelerating the corrosion of the alloy. However, the uniform corrosion rate of 2205 DSS remained generally below the 100 µm/yr threshold. Moreover, the CCT of the alloy decreased with increasing concentrations of Cl<sup>−</sup> and H<sub>2</sub>O<sub>2</sub>, while higher concentrations of H<sub>2</sub>SO<sub>4</sub> improved CCT, likely due to inhibition by sulfate ions. These findings enhance the current understanding of the corrosion resistance of 2205 DSS in aggressive environments, offering valuable insights for the application of this alloy in hydrometallurgical processes.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 112987"},"PeriodicalIF":7.4000,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Corrosion performance of 2205 duplex stainless steel in simulated hydrometallurgical processes: A study of uniform and crevice corrosion\",\"authors\":\"Davood Nakhaie, Edouard Asselin\",\"doi\":\"10.1016/j.corsci.2025.112987\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The corrosion behavior of SAF 2205 duplex stainless steel (DSS) is studied under acidic conditions of hydrometallurgical processes. The focus is on uniform and crevice corrosion. A Central Composite Design (CCD) was employed to evaluate the effects of temperature, sulfuric acid, hydrogen peroxide, and chloride concentration on the corrosion rate and critical crevice temperature (CCT) of 2205 DSS. Analysis of variance (ANOVA) revealed that the uniform corrosion rate is primarily influenced by temperature and chloride concentration, with both factors accelerating the corrosion of the alloy. However, the uniform corrosion rate of 2205 DSS remained generally below the 100 µm/yr threshold. Moreover, the CCT of the alloy decreased with increasing concentrations of Cl<sup>−</sup> and H<sub>2</sub>O<sub>2</sub>, while higher concentrations of H<sub>2</sub>SO<sub>4</sub> improved CCT, likely due to inhibition by sulfate ions. These findings enhance the current understanding of the corrosion resistance of 2205 DSS in aggressive environments, offering valuable insights for the application of this alloy in hydrometallurgical processes.</div></div>\",\"PeriodicalId\":290,\"journal\":{\"name\":\"Corrosion Science\",\"volume\":\"253 \",\"pages\":\"Article 112987\"},\"PeriodicalIF\":7.4000,\"publicationDate\":\"2025-04-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Corrosion Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0010938X25003142\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Corrosion Science","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0010938X25003142","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

研究了saf2205双相不锈钢（DSS）在酸性湿法冶金条件下的腐蚀行为。重点是均匀腐蚀和缝隙腐蚀。采用中心复合设计（CCD）评价了温度、硫酸、双氧水和氯化物浓度对2205 DSS腐蚀速率和临界缝隙温度（CCT）的影响。方差分析（ANOVA）表明，均匀腐蚀速率主要受温度和氯化物浓度的影响，两者都加速了合金的腐蚀。2205 DSS的均匀腐蚀速率普遍低于100 µm/yr的阈值。此外，合金的CCT随Cl -和H2O2浓度的增加而降低，而高浓度的H2SO4可能由于硫酸盐离子的抑制作用而改善了CCT。这些发现增强了目前对2205 DSS在腐蚀性环境中的耐腐蚀性的理解，为该合金在湿法冶金过程中的应用提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Corrosion performance of 2205 duplex stainless steel in simulated hydrometallurgical processes: A study of uniform and crevice corrosion

The corrosion behavior of SAF 2205 duplex stainless steel (DSS) is studied under acidic conditions of hydrometallurgical processes. The focus is on uniform and crevice corrosion. A Central Composite Design (CCD) was employed to evaluate the effects of temperature, sulfuric acid, hydrogen peroxide, and chloride concentration on the corrosion rate and critical crevice temperature (CCT) of 2205 DSS. Analysis of variance (ANOVA) revealed that the uniform corrosion rate is primarily influenced by temperature and chloride concentration, with both factors accelerating the corrosion of the alloy. However, the uniform corrosion rate of 2205 DSS remained generally below the 100 µm/yr threshold. Moreover, the CCT of the alloy decreased with increasing concentrations of Cl⁻ and H₂O₂, while higher concentrations of H₂SO₄ improved CCT, likely due to inhibition by sulfate ions. These findings enhance the current understanding of the corrosion resistance of 2205 DSS in aggressive environments, offering valuable insights for the application of this alloy in hydrometallurgical processes.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.