Formation of delta-ferrite and its effect on impact toughness of GTAW weld metals in a 12 wt-% Cr steel
文献类型：期刊论文
| 作者 | Wu, Dong1; Tian, Wenbin1,2; Zhang, Kaiyuan1,2; Lu, Shanping1,3 |
| 刊名 | SCIENCE AND TECHNOLOGY OF WELDING AND JOINING
 |
| 出版日期 | 2022-11-23 |
| 页码 | 7 |
| ISSN号 | 1362-1718 |
| 关键词 | delta-phase 12Cr% steel preheating temperature GTAW phase transformation impact toughness |
| DOI | 10.1080/13621718.2022.2148063 |
| 通讯作者 | Lu, Shanping(shplu@imr.ac.cn) |
| 英文摘要 | This research focused on the formation of the delta-phase and the corresponding effect on the impact toughness in a GTAW weld metal of a 12%Cr F/M steel. Two kinds of delta-phase were identified: one located at the prior austenitic grain boundaries (PAGBs) (called delta(PAGB)) and the other was in the inter-dendritic region (called delta(inter)). The delta(inter) implied that the peritectic transition that occurred at the final stage of solidification in the DSC test, was suppressed in the welding process. A preheating treatment at 95 & DEG;C decreased optimally the delta-phase fraction and thereby decrease the ductile-brittle transition temperature (DBTT). However, excessive preheating at higher temperatures enhanced the fraction of the delta(inter) by promoting the micro-segregation and thus increased the DBTT. |
| 资助项目 | National Key Research and Development Program of China ; [2018YFA0702902] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS LTD |
| WOS记录号 | WOS:000889485400001 |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/176869]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Lu, Shanping |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China 3.Inst Met Sci & Technol, Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Dong,Tian, Wenbin,Zhang, Kaiyuan,et al. Formation of delta-ferrite and its effect on impact toughness of GTAW weld metals in a 12 wt-% Cr steel[J]. SCIENCE AND TECHNOLOGY OF WELDING AND JOINING,2022:7. |
| APA | Wu, Dong,Tian, Wenbin,Zhang, Kaiyuan,&Lu, Shanping.(2022).Formation of delta-ferrite and its effect on impact toughness of GTAW weld metals in a 12 wt-% Cr steel.SCIENCE AND TECHNOLOGY OF WELDING AND JOINING,7. |
| MLA | Wu, Dong,et al."Formation of delta-ferrite and its effect on impact toughness of GTAW weld metals in a 12 wt-% Cr steel".SCIENCE AND TECHNOLOGY OF WELDING AND JOINING (2022):7. |
入库方式： OAI收割
来源：金属研究所
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