Experimental study of corrosion resistance of 431M2 stainless steel coatings in a CO2-saturated NaCl solution deposited by extreme high-speed laser cladding
文献类型：期刊论文
| 作者 | Li, Chen1; Liu, Zhenhui1; Huang, Fule1; Dong, Junhua2; Wang, Changgang2; Yuan, Jun1; Fu, Qijun3 |
| 刊名 | MATERIALS TODAY COMMUNICATIONS
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 38页码:15 |
| 关键词 | Extreme high -speed laser metal deposition Electrochemical measurement CO2 corrosion |
| DOI | 10.1016/j.mtcomm.2024.108202 |
| 通讯作者 | Li, Chen(lich@gxu.edu.cn) ; Fu, Qijun(furuwen2008@163.com) |
| 英文摘要 | Corrosion of pipeline steel is an important issue affecting the safe transport of CO2 in Carbon Capture, Utilisation and Storage (CCUS) systems. Therefore, in this paper, 431M2 coatings were prepared by extreme high-speed laser cladding (EHLC) and conventional laser cladding (CL), and the differences in the microstructures of the two coatings as well as their corrosion resistance in CO2-saturated solutions containing O2 at pH 2.0-4.0 were analysed by means of electrochemical tests and offline characterisation. It was found that, different from the CL coatings with severe elemental segregation, preferential corrosion within the dendrites, and no obvious passivation characteristics at pH 2.0-4.0, the EHLC coatings had superior resistance to uniform corrosion and pitting at pH 2.0-4.0, which was related to the finer dendritic size, higher content of low angular grain boundaries, and weak elemental segregation. As the pH value decreased, the number of defects in the passivation film of EHLC coatings increased and the corrosion resistance decreased. The excellent corrosion resistance of EHLC coatings at low pH conditions was related to the high Cr2O3 percentage in the passivation film. |
| 资助项目 | National Natural Science Foundation of China[52271082] ; Beijing Natural Science Foundation[2222074] ; Inner Mongolia Key R & D Pro- gram of China[2021ZD0038] ; Fund for Less Developed Regions of the National Natural Scienc`e Foundation of China[52265005] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001178973800001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Beijing Natural Science Foundation ; Inner Mongolia Key R & D Pro- gram of China ; Fund for Less Developed Regions of the National Natural Scienc`e Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Chen; Fu, Qijun |
| 作者单位 | 1.Guangxi Univ, Coll Mech Engn, Nanning 530004, Guangxi, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Nanning Sugar Ind Co Ltd, Nanning 530023, Guangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Chen,Liu, Zhenhui,Huang, Fule,et al. Experimental study of corrosion resistance of 431M2 stainless steel coatings in a CO2-saturated NaCl solution deposited by extreme high-speed laser cladding[J]. MATERIALS TODAY COMMUNICATIONS,2024,38:15. |
| APA | Li, Chen.,Liu, Zhenhui.,Huang, Fule.,Dong, Junhua.,Wang, Changgang.,...&Fu, Qijun.(2024).Experimental study of corrosion resistance of 431M2 stainless steel coatings in a CO2-saturated NaCl solution deposited by extreme high-speed laser cladding.MATERIALS TODAY COMMUNICATIONS,38,15. |
| MLA | Li, Chen,et al."Experimental study of corrosion resistance of 431M2 stainless steel coatings in a CO2-saturated NaCl solution deposited by extreme high-speed laser cladding".MATERIALS TODAY COMMUNICATIONS 38(2024):15. |
入库方式： OAI收割
来源：金属研究所
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