Tensile Deformation and Fracture Behavior of Nickel-Based Superalloy DZ951G
文献类型：期刊论文
| 作者 | Guo, Chenhao1,2; Yu, Jinjiang2; Liu, Jinlai2; Sun, Xiaofeng2; Zhou, Yizhou2 |
| 刊名 | MATERIALS
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 14期号:9页码:11 |
| 关键词 | DZ951G superalloy tensile properties stacking faults microstructures deformation mechanisms |
| DOI | 10.3390/ma14092250 |
| 通讯作者 | Yu, Jinjiang(jjyu@imr.ac.cn) |
| 英文摘要 | DZ951G is a novel developed nickel-based directional solidified superalloy with an incipient high melting point and low density. Compared with DZ417G superalloy, DZ951G superalloy has a higher ultimate tensile strength. At intermediate temperatures, the plasticity and strength were both markedly improved, and an obviously anomalous yield behavior could be observed where the yield strength reached its maximum at 760 degrees C. Below 600 degrees C, two competitive modes of dislocations shearing gamma ' particles existed, in which one was the formation of stacking faults and another was a/2 dislocations shearing. At intermediate temperatures, a transitional phase between shearing gamma ' particles and bypassing appeared, and the fracture translated from brittle fracture into ductile fracture. Exceeding 900 degrees C, bypassing of dislocations was operated under thermal activation. Moreover, short continuous stacking faults still existed at 760 degrees C. Finally, the various dislocation configurations were rationally illuminated and explained with the intrinsic connection of mechanical properties. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[51771191] ; National Natural Science Foundation of China (NSFC)[51971214] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000650555100001 |
| 资助机构 | National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.imr.ac.cn/handle/321006/161525]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yu, Jinjiang |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Chenhao,Yu, Jinjiang,Liu, Jinlai,et al. Tensile Deformation and Fracture Behavior of Nickel-Based Superalloy DZ951G[J]. MATERIALS,2021,14(9):11. |
| APA | Guo, Chenhao,Yu, Jinjiang,Liu, Jinlai,Sun, Xiaofeng,&Zhou, Yizhou.(2021).Tensile Deformation and Fracture Behavior of Nickel-Based Superalloy DZ951G.MATERIALS,14(9),11. |
| MLA | Guo, Chenhao,et al."Tensile Deformation and Fracture Behavior of Nickel-Based Superalloy DZ951G".MATERIALS 14.9(2021):11. |
入库方式： OAI收割
来源：金属研究所
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