Effects of phosphorus and boron on the γ " precipitate evolution and creep properties of IN718 superalloy during long-term thermal exposure at 680 °C
文献类型：期刊论文
| 作者 | Wang, Zhiyuan1,2; Xue, Chaochao3; Liu, Yingjie1,2; Xin, Xin2; Sun, Wenru2 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2024-08-15 |
| 卷号 | 995页码:12 |
| 关键词 | IN718 superalloy Phosphorus and boron Long-term thermal exposure gamma '' precipitates Creep property |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2024.174743 |
| 通讯作者 | Xin, Xin(xxin@imr.ac.cn) ; Sun, Wenru(wrsun@imr.ac.cn) |
| 英文摘要 | A study was conducted to investigate the effect of the combined addition of P and B on the gamma '' precipitate and creep properties of IN718 superalloy under long-term thermal exposure at 680 degrees C. Atomic probe tomography (APT) analysis and X-ray diffraction (XRD) results indicated that P could segregate in the gamma '' precipitates in a substitutional way and then improve the stability of the gamma '' precipitates when subjected to prolonged thermal exposure. No segregation of B was found in the gamma '' precipitates. The addition of P and B significantly improves the creep properties of the IN718 superalloy during long-term thermal exposure at 680 degrees C. By increasing the exposure time, the creep life of the high P and B alloy at 650 degrees C/725 MPa initially increased, peaking at 500 h, and then decreased as the exposure time increased. However, the low P and B alloy shows a consistent decrease in creep life with increasing thermal exposure time. During a relatively short thermal exposure, the microstructural analysis indicated that the substantial enhancement in creep life of the high P and B alloy primarily stems from cross twins and Lomer-Cottrell (LC) locks. As the thermal exposure time increases, the more stable gamma '' precipitates in the high P and B alloy, which directly improves the creep properties. The dominant deformation mechanism in the two alloys shifts from predominantly twin to a combination of twin, stacking fault (SF) and antiphase boundary-like (APB-like) shear gamma '' precipitate with prolonged thermal exposure. |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001240696500001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xin, Xin; Sun, Wenru |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.South China Univ Technol, Guangzhou Int Campus, Guangzhou 511442, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhiyuan,Xue, Chaochao,Liu, Yingjie,et al. Effects of phosphorus and boron on the γ " precipitate evolution and creep properties of IN718 superalloy during long-term thermal exposure at 680 °C[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2024,995:12. |
| APA | Wang, Zhiyuan,Xue, Chaochao,Liu, Yingjie,Xin, Xin,&Sun, Wenru.(2024).Effects of phosphorus and boron on the γ " precipitate evolution and creep properties of IN718 superalloy during long-term thermal exposure at 680 °C.JOURNAL OF ALLOYS AND COMPOUNDS,995,12. |
| MLA | Wang, Zhiyuan,et al."Effects of phosphorus and boron on the γ " precipitate evolution and creep properties of IN718 superalloy during long-term thermal exposure at 680 °C".JOURNAL OF ALLOYS AND COMPOUNDS 995(2024):12. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。