Effect of P and B compound strengthening on the evolution of phases and stress rupture properties of the IN718 superalloy during long-term aging at 650 & DEG;C
文献类型：期刊论文
| 作者 | Wang, Zhiyuan2,3; Zhang, Weiwei1; Li, Shaowei2,3; Mei, Feiqiang4; Xin, Xin2; Sun, Wenru2 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2023-08-10 |
| 卷号 | 881页码:14 |
| 关键词 | IN718 superalloy Phosphorus and boron compound strengthening Long -term aging Microstructure Stress-rupture property |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2023.145386 |
| 通讯作者 | Xin, Xin(xxin@imr.ac.cn) ; Sun, Wenru(wrsun@imr.ac.cn) |
| 英文摘要 | The influences of P and B compound strengthening on the precipitated phases, stress-rupture properties and deformation mechanisms of a direct-aged IN718 superalloy during long-term aging at 650 & DEG;C are investigated. The results indicate that the combined addition of P and B reduces the coarsening rate of & gamma;& DPRIME; phases and markedly inhibits the precipitation and growth of 8 phases and & alpha;-Cr phases. P and B compound strengthening could improve the stress-rupture property of the alloy at 680 & DEG;C/700 MPa by increasing the strength of intragranular and grain boundary. In the grain interior, P and B compound strengthening could inhibit the intragranular diffusion and hinder the coarsening of & gamma;& DPRIME; phases, thus increasing the stability of & gamma;& DPRIME; phases that could reduce the degree of cut by dislocations. In addition, the combined addition of P and B reduces the stacking fault energy of the alloy and forms the high-density twin, improving the ability of the alloy to impede dislocation movement. At the grain boundary, P and B compound strengthening could inhibit the grain boundary diffusion, hindering the nucleation and growth of the 8 phase and the & alpha;-Cr phase, and the crack initiation and propagation. After aging at 650 & DEG;C for 5000 h, the combined addition of P and B could also inhibit the precipitation of TCP-& sigma; phases at grain boundaries, but the TCP phases have no obvious effect on the stress-rupture property of the alloys due to their lower amounts and sizes. With the increase in aging time, the permanent deformation mechanism of the two alloys changes from twinning to dislocation shear & gamma;" phase and twinning. |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001038034700001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178765]  |
| 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.Chengdu Adv Met Mat Ind Technol Res Inst Co Ltd, Chengdu 610303, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.AF Equipment Dept, Shenyang Area 2nd Mil Representat Room, Shenyang 110043, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhiyuan,Zhang, Weiwei,Li, Shaowei,et al. Effect of P and B compound strengthening on the evolution of phases and stress rupture properties of the IN718 superalloy during long-term aging at 650 & DEG;C[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2023,881:14. |
| APA | Wang, Zhiyuan,Zhang, Weiwei,Li, Shaowei,Mei, Feiqiang,Xin, Xin,&Sun, Wenru.(2023).Effect of P and B compound strengthening on the evolution of phases and stress rupture properties of the IN718 superalloy during long-term aging at 650 & DEG;C.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,881,14. |
| MLA | Wang, Zhiyuan,et al."Effect of P and B compound strengthening on the evolution of phases and stress rupture properties of the IN718 superalloy during long-term aging at 650 & DEG;C".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 881(2023):14. |
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。