The mechanisms underlying the effect of tempering time on the pitting behavior of high-nitrogen martensitic stainless steel
文献类型：期刊论文
| 作者 | Wang, Siyan1,3; Du, Hongyao1; Shi, Zhiyue1,2,4; Zhang, Litao2; Liu, Canshuai5,6; Yan, Zhijie1; Wang, Jianqiu3; Wang, Cunyu4; Cao, Wenquan4; Liang, Minjie1 |
| 刊名 | CORROSION SCIENCE
 |
| 出版日期 | 2025-04-15 |
| 卷号 | 246页码:17 |
| 关键词 | HNMSS Pitting Corrosion behavior Tempering Cr2N |
| ISSN号 | 0010-938X |
| DOI | 10.1016/j.corsci.2025.112748 |
| 通讯作者 | Wang, Jianqiu(wangjianqiu@imr.ac.cn) ; Liang, Minjie(18835138493@163.com) |
| 英文摘要 | High-nitrogen martensitic stainless steel (HNMSS) is widely used in chemical, marine, and medical applications due to its excellent mechanical properties and corrosion resistance. However, pitting corrosion remains a major issue, particularly in chloride-containing environments. The tempering process after quenching affects both the mechanical properties and microstructure of HNMSS, but its influence on pitting behavior is not well understood. This study investigates the effect of tempering duration on the pitting corrosion of HNMSS in 3.5 wt% NaCl solution. The HNMSS was solution-treated at 1030 degrees C for 30 min, followed by oil quenching and cryogenic treatment, and then tempered at 500 degrees C for 1-100 h. Microstructure characterization was performed using XRD, SEM, and TEM. Potentiodynamic polarization and EIS were used to assess pitting behavior, while in-situ electrochemical techniques and SEM were employed to observe corrosion morphology. The results showed that after solution treatment, HNMSS contained significant undissolved primary Cr2N, with no chromium carbides. Secondary Cr2N appeared only after 100 h of tempering. Pitting sensitivity increased with longer tempering times, with the pitting potential decreasing from 0.348 V (cryogenic treatment) to 0.124 V after 2 h of tempering. Beyond 5 h, pitting occurred without anodic polarization, resulting in loss of passivation. This behavior is related to the decrease in chromium content in the matrix surrounding the primary Cr2N, which drops to 7.47 at% after 100 h of tempering. The primary Cr2N had a more significant impact on pitting sensitivity than the secondary Cr2N. |
| 资助项目 | Opening Foundation of Shanxi Key Laboratory of Advanced Metal Materials for Special Environments[AMMSE-2023-008] ; Natural Science Foundation of Shanxi Province[202103021224219] ; Taiyuan Alloy Technology Key Project[2024TYJB0123] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001420550700001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Opening Foundation of Shanxi Key Laboratory of Advanced Metal Materials for Special Environments ; Natural Science Foundation of Shanxi Province ; Taiyuan Alloy Technology Key Project |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Jianqiu; Liang, Minjie |
| 作者单位 | 1.North Univ China, Shanxi Key Lab Adv Met Mat Special Environm, Taiyuan 030051, Peoples R China 2.Shanxi Taigang Stainless Steel Co Ltd, Technol Ctr, Taiyuan 030003, Peoples R China 3.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 4.Cent Iron & Steel Res Inst Co Ltd, Res Inst Special Steel, Beijing 100081, Peoples R China 5.Suzhou Nucl Power Res Inst Co Ltd, Suzhou 215004, Jiangsu, Peoples R China 6.Natl Engn Res Ctr Nucl Power Plant Safety & Reliab, Suzhou 215004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Siyan,Du, Hongyao,Shi, Zhiyue,et al. The mechanisms underlying the effect of tempering time on the pitting behavior of high-nitrogen martensitic stainless steel[J]. CORROSION SCIENCE,2025,246:17. |
| APA | Wang, Siyan.,Du, Hongyao.,Shi, Zhiyue.,Zhang, Litao.,Liu, Canshuai.,...&Liang, Minjie.(2025).The mechanisms underlying the effect of tempering time on the pitting behavior of high-nitrogen martensitic stainless steel.CORROSION SCIENCE,246,17. |
| MLA | Wang, Siyan,et al."The mechanisms underlying the effect of tempering time on the pitting behavior of high-nitrogen martensitic stainless steel".CORROSION SCIENCE 246(2025):17. |
入库方式： OAI收割
来源：金属研究所
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