Hot Deformation Behavior and Microstructure Evolution of 6063 Aluminum Alloy Modified by Rare Earth Y and Al-Ti-B Master Alloy | |
Ding, Wanwu1,2; Liu, Xiaoxiong1,2; Zhao, Xiaoyan1,2; Chen, Taili1,2; Zhang, Haixia1,2; Cheng, Yan1,2; Shi, Huaixin1,2 | |
刊名 | MATERIALS |
2020-10-01 | |
卷号 | 13期号:19 |
关键词 | 6063 aluminum alloy hot deformation behavior constitutive equation processing map microstructure evolution |
DOI | 10.3390/ma13194244 |
英文摘要 | The hot deformation behaviors of the new 6063 aluminum alloy modified by rare earth Y and Al-Ti-B master alloy were studied through isothermal hot compression experiments on the Gleeble-3800 thermal simulator. By characterizing the flow curves, constitutive models, hot processing maps, and microstructures, we can see from the true stress-true strain curves that the flow stress decreases with the increase of deformation temperature and the decrease of strain rate. Through the calculation of the constitutive equation, we derived that the activation energy of the new composite modified 6063 aluminum alloy is 224.570 KJ/mol. we roughly obtained its excellent hot processing range of temperatures between 470-540 degrees C and the strain rates of 0.01-0.1 s(-1). The verification of the deformed microstructure shows that with the decrease of lnZ, the grain boundary changes from a low-angle one to a high-angle one and the dynamic recrystallization is dominated by geometric dynamic recrystallization and continuous dynamic recrystallization. Analysis of typical samples at 480 degrees C/0.01 s(-1) shows that the addition of rare earth Y mainly helps form Al3Y5 and AlFeSiY phases, thus making the alloy have the performance of high-temperature recrystallization, which is beneficial to the hot workability of the alloy. |
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:000587247500001 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/155080] |
专题 | 材料科学与工程学院 土木工程学院 |
作者单位 | 1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China |
推荐引用方式 GB/T 7714 | Ding, Wanwu,Liu, Xiaoxiong,Zhao, Xiaoyan,et al. Hot Deformation Behavior and Microstructure Evolution of 6063 Aluminum Alloy Modified by Rare Earth Y and Al-Ti-B Master Alloy[J]. MATERIALS,2020,13(19). |
APA | Ding, Wanwu.,Liu, Xiaoxiong.,Zhao, Xiaoyan.,Chen, Taili.,Zhang, Haixia.,...&Shi, Huaixin.(2020).Hot Deformation Behavior and Microstructure Evolution of 6063 Aluminum Alloy Modified by Rare Earth Y and Al-Ti-B Master Alloy.MATERIALS,13(19). |
MLA | Ding, Wanwu,et al."Hot Deformation Behavior and Microstructure Evolution of 6063 Aluminum Alloy Modified by Rare Earth Y and Al-Ti-B Master Alloy".MATERIALS 13.19(2020). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
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。
修改评论