Formation of Mixed Grains in Nuclear Grade IN718 Superalloy and Its Effect on Mechanical Properties
文献类型：期刊论文
| 作者 | Li Aodi1,2,3; Liang Tian2,3; Zhang Xueliang4; Zhao Xia2,3; Wang Huisheng4; Chen Jiacheng4; Ma Yingche2,3 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 53期号:3页码:736-747 |
| 关键词 | nuclear grade 718 alloy elongated grain mixed grains tensile properties |
| ISSN号 | 1002-185X |
| DOI | 10.12442/j.issn.1002-185X.20230094 |
| 通讯作者 | Liang Tian(tliang@imr.ac.cn) |
| 英文摘要 | The effects of different hot rolling parameters and post-rolling heat treatment on the structures and tensile properties of nuclear grade 718 alloys were investigated by designing different initial rolling temperatures and deformation amounts. The results show that when the initial rolling temperature is below 1150 degrees C and the heat deformation amount is lower than 90%, a large number of elongated grains appear in the structure and the elongation of the alloy is reduced; when the initial rolling temperature is 1150 degrees C or the heat deformation amount reaches 90%, a unifo Abstrquiaxed grain structure can be obtained. After the solid solution treatment at 990 degrees C of the rolled plate, delta phases are precipitated and pinned to grain boundaries, and a mixed grain microstructure forms. The average values of yield strength and tensile strength at 315 degrees C after standard aging treatment can reach 1050 MPa and 1238 MPa, respectively, and elongation is up to 26%; Upon solid solution treatment at 1020 degrees C, the grown equiaxed grains are obtained, whereas the average yield strength and tensile strength at 315 degrees C can reach 985 MPa and 1175 MPa after standard aging treatment, respectively, and the elongation is up to 29%, and the alloy exhibits good strength and toughness. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001252657300015 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liang Tian |
| 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, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.IMR NMSA, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 4.CGN Uranium Dev Co Ltd, CGN Adv Fuel Dev Ctr, Yangjiang 529500, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Aodi,Liang Tian,Zhang Xueliang,et al. Formation of Mixed Grains in Nuclear Grade IN718 Superalloy and Its Effect on Mechanical Properties[J]. RARE METAL MATERIALS AND ENGINEERING,2024,53(3):736-747. |
| APA | Li Aodi.,Liang Tian.,Zhang Xueliang.,Zhao Xia.,Wang Huisheng.,...&Ma Yingche.(2024).Formation of Mixed Grains in Nuclear Grade IN718 Superalloy and Its Effect on Mechanical Properties.RARE METAL MATERIALS AND ENGINEERING,53(3),736-747. |
| MLA | Li Aodi,et al."Formation of Mixed Grains in Nuclear Grade IN718 Superalloy and Its Effect on Mechanical Properties".RARE METAL MATERIALS AND ENGINEERING 53.3(2024):736-747. |
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。