Regulating the partially mixed zone via post-weld heat treatment to enhance sulfide stress corrosion cracking resistance of the Inconel 625/X80 weld overlay
文献类型：期刊论文
| 作者 | Zhang, Yan1,2; Dong, Lijin1; Ma, Cheng3; Zhang, Ziyu4; Wang, Qinying1; Wu, Guiyu1; Liu, Li1 |
| 刊名 | MATERIALS TODAY COMMUNICATIONS
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 40页码:12 |
| 关键词 | Post-weld heat treatment Sulfide stress corrosion cracking Partially mixed zone Inconel 625/X80 weld overlay Hydrogen |
| DOI | 10.1016/j.mtcomm.2024.109701 |
| 通讯作者 | Dong, Lijin(ljdong89@163.com) |
| 英文摘要 | This paper investigated the effect of post-weld heat treatment (PWHT) on microstructure evolution and sulfide stress corrosion cracking (SSCC) behavior of the fusion boundary (FB) region of Inconel 625/X80 weld overlay, with a focus on the partially mixed zone (PMZ). Three heat treatment regimens were designed, namely 620 degrees C/ 10 h, 620 degrees C/20 h, and 670 degrees C/10 h, in which 620 degrees C/20 h was proved to be the optimal parameter. The 10-hour PWHT conditions might induce heterogeneous carbon distribution owing to insufficient tempering duration, exacerbating the hardness mismatch in the FB region and thus promoting the development of SSCC. Following the 620 degrees C/20 h treatment, most of the brittle phase with high hardness in the FB region was eliminated, reducing the nucleation site for SSCC. More importantly, martensite in the PMZ was transformed into austenite with rod morphology, while cementite adjacent to the PMZ might evolve into dispersed refined austenite. Austenite shows low hydrogen sensitivity, enhancing the SSCC resistance of the PMZ. On the other hand, the carbides in the X80 matrix might restrict the diffusion of hydrogen toward the PMZ, thereby reducing the susceptibility of the PMZ to SSCC. |
| 资助项目 | National Natural Science Foundation of China[52001264] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001264271900001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science 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 | Dong, Lijin |
| 作者单位 | 1.Southwest Petr Univ, Sch New Energy & Mat, Chengdu 610500, Peoples R China 2.Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Corros & Protect Ctr, Beijing 100083, Peoples R China 3.HBIS Grp, Mat Technol Res Inst, Shijiazhuang 050000, Peoples R China 4.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yan,Dong, Lijin,Ma, Cheng,et al. Regulating the partially mixed zone via post-weld heat treatment to enhance sulfide stress corrosion cracking resistance of the Inconel 625/X80 weld overlay[J]. MATERIALS TODAY COMMUNICATIONS,2024,40:12. |
| APA | Zhang, Yan.,Dong, Lijin.,Ma, Cheng.,Zhang, Ziyu.,Wang, Qinying.,...&Liu, Li.(2024).Regulating the partially mixed zone via post-weld heat treatment to enhance sulfide stress corrosion cracking resistance of the Inconel 625/X80 weld overlay.MATERIALS TODAY COMMUNICATIONS,40,12. |
| MLA | Zhang, Yan,et al."Regulating the partially mixed zone via post-weld heat treatment to enhance sulfide stress corrosion cracking resistance of the Inconel 625/X80 weld overlay".MATERIALS TODAY COMMUNICATIONS 40(2024):12. |
入库方式： OAI收割
来源：金属研究所
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