Preferential distribution behavior of B and its enhancement on creep strength of alumina-forming austenitic heat-resistant steel
文献类型：期刊论文
| 作者 | Shu, Ming1,2; Zhou, Qin2; Li, Gang1; Liang, Xue3; Ming, Hongliang4; Sun, Yongduo1; Lin, Xiaodong3; Xiao, Jun1 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 205页码:12 |
| 关键词 | AFA Boron Laves phase APT Creep Thermal aging |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2023.113357 |
| 通讯作者 | Zhou, Qin(qinzhou@tsinghua.edu.cn) |
| 英文摘要 | The addition of a trace amount of 20 ppm B significantly enhanced the creep performance of the 2.5Al-AFA alloy at 650 degrees C, demonstrating sustained improvement even after prolonged thermal aging. Boron (B) preferentially distributed in the Laves phase within the matrix, rather than in the NiAl or Cr -rich phases. APT analysis revealed M23C6 may serve as a reservoir of B, gradually allowing B diffusing into the surrounding Laves phase at grain boundaries (GBs). Creep cracks propagated mainly along GBs, with the a phase serving as initiation sites. The average volume fraction of a phase exhibited a linear correlation with the reciprocal of creep rupture time. B accelerated the precipitation of Laves with a larger size and higher volume fraction, which played a dual role of improved GB strengthening and more effective suppression of a phase growth. |
| 资助项目 | Special Funds for the Key Research and Development Program of the Ministry of Science and Technology of China[2020YFB1901800] ; Natural Science Founda-tion of Sichuan Province[2022NSFSC1191] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001089919000001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | Special Funds for the Key Research and Development Program of the Ministry of Science and Technology of China ; Natural Science Founda-tion of Sichuan Province |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177912]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhou, Qin |
| 作者单位 | 1.Nucl Power Inst China, Chengdu 610213, Peoples R China 2.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China 3.Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China 4.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shu, Ming,Zhou, Qin,Li, Gang,et al. Preferential distribution behavior of B and its enhancement on creep strength of alumina-forming austenitic heat-resistant steel[J]. MATERIALS CHARACTERIZATION,2023,205:12. |
| APA | Shu, Ming.,Zhou, Qin.,Li, Gang.,Liang, Xue.,Ming, Hongliang.,...&Xiao, Jun.(2023).Preferential distribution behavior of B and its enhancement on creep strength of alumina-forming austenitic heat-resistant steel.MATERIALS CHARACTERIZATION,205,12. |
| MLA | Shu, Ming,et al."Preferential distribution behavior of B and its enhancement on creep strength of alumina-forming austenitic heat-resistant steel".MATERIALS CHARACTERIZATION 205(2023):12. |
入库方式： OAI收割
来源：金属研究所
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