Effects of minor Sc addition on the microstructure and mechanical properties of 7055 Al alloy during aging
文献类型：期刊论文
| 作者 | Teng, GB; Liu, CY; Ma, ZY; Zhou, WB; Wei, LL; Chen, Y; Li, J; Mo, YF; Liu, CY (reprint author), Guilin Univ Technol, Key Lab New Proc Technol Nonferrous Met & Mat, Minist Educ, Guilin 541004, Peoples R China.; Ma, ZY (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China. |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2018-01-24 |
| 卷号 | 713页码:61-66 |
| 关键词 | Mg-cu Alloy Stress-corrosion Cracking Aluminum-alloy Precipitation Behaviors Tensile Properties Pre-strain Zr Alloy Evolution Strength 7055-aluminum-alloy |
| ISSN号 | 0921-5093 |
| 英文摘要 | This study investigated the effects of 0.25% (mass ratio) Sc addition on the microstructure and mechanical properties of 7055 alloy during aging. Sc addition induced a grain boundary effect, which refined the grains of the 7055 alloy. Sc addition also increased the precipitation nucleation efficiency and promoted the uniform precipitation of the eta' phase of 7055 alloy during aging. Compared with pure 7055 alloy, 7055 alloy with Sc exhibited improved hardness, tensile strength, ductility, and thermal stability. This improvement was attributed to the finer size, higher density, more uniformly distributed eta' phase, less eta phase, and finer Al grains of 7055 alloy with Sc compared with those of 7055 alloy without Sc.; This study investigated the effects of 0.25% (mass ratio) Sc addition on the microstructure and mechanical properties of 7055 alloy during aging. Sc addition induced a grain boundary effect, which refined the grains of the 7055 alloy. Sc addition also increased the precipitation nucleation efficiency and promoted the uniform precipitation of the eta' phase of 7055 alloy during aging. Compared with pure 7055 alloy, 7055 alloy with Sc exhibited improved hardness, tensile strength, ductility, and thermal stability. This improvement was attributed to the finer size, higher density, more uniformly distributed eta' phase, less eta phase, and finer Al grains of 7055 alloy with Sc compared with those of 7055 alloy without Sc. |
| 学科主题 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China [51601045]; Guangxi "Bagui" Teams for Innovation and Research; Research Program of Science and Technology of Guangxi [GKAB16380021] |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79567]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, CY (reprint author), Guilin Univ Technol, Key Lab New Proc Technol Nonferrous Met & Mat, Minist Educ, Guilin 541004, Peoples R China.; Ma, ZY (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Teng, GB,Liu, CY,Ma, ZY,et al. Effects of minor Sc addition on the microstructure and mechanical properties of 7055 Al alloy during aging[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,713:61-66. |
| APA | Teng, GB.,Liu, CY.,Ma, ZY.,Zhou, WB.,Wei, LL.,...&Ma, ZY .(2018).Effects of minor Sc addition on the microstructure and mechanical properties of 7055 Al alloy during aging.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,713,61-66. |
| MLA | Teng, GB,et al."Effects of minor Sc addition on the microstructure and mechanical properties of 7055 Al alloy during aging".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 713(2018):61-66. |
入库方式： OAI收割
来源：金属研究所
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