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DOI | 10.1126/science.aav7086 |
Precipitation strengthening of aluminum alloys by room-temperature cyclic plasticity | |
Sun, Wenwen1; Zhu, Yuman1; Marceau, Ross2; Wang, Lingyu1; Zhang, Qi1; Gao, Xiang1; Hutchinson, Christopher1 | |
2019-03-01 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 363期号:6430页码:972-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | High-strength aluminum alloys are important for lightweighting vehicles and are extensively used in aircraft and, increasingly, in automobiles. The highest-strength aluminum alloys require a series of high-temperature "bakes" (120 degrees to 200 degrees C) to form a high number density of nanoparticles by solid-state precipitation. We found that a controlled, room-temperature cyclic deformation is sufficient to continuously inject vacancies into the material and to mediate the dynamic precipitation of a very fine (1-to 2-nanometer) distribution of solute clusters. This results in better material strength and elongation properties relative to traditional thermal treatments, despite a much shorter processing time. The microstructures formed are much more uniform than those characteristic of traditional thermal treatments and do not exhibit precipitate-free zones. These alloys are therefore likely to be more resistant to damage. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460194200044 |
WOS关键词 | DYNAMIC PRECIPITATION ; VACANCIES ; SEGREGATION ; ENERGIES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/200862 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia; 2.Deakin Univ, Inst Frontier Mat, Geelong, Vic 3126, Australia |
推荐引用方式 GB/T 7714 | Sun, Wenwen,Zhu, Yuman,Marceau, Ross,et al. Precipitation strengthening of aluminum alloys by room-temperature cyclic plasticity[J]. SCIENCE,2019,363(6430):972-+. |
APA | Sun, Wenwen.,Zhu, Yuman.,Marceau, Ross.,Wang, Lingyu.,Zhang, Qi.,...&Hutchinson, Christopher.(2019).Precipitation strengthening of aluminum alloys by room-temperature cyclic plasticity.SCIENCE,363(6430),972-+. |
MLA | Sun, Wenwen,et al."Precipitation strengthening of aluminum alloys by room-temperature cyclic plasticity".SCIENCE 363.6430(2019):972-+. |
条目包含的文件 | 条目无相关文件。 |
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