| 固溶时效处理对挤压态6082铝合金力学性能和组织的影响 |
| |
| 引用本文： | 刘吉兆,刘巍,袁浩登,吴远志,叶拓,刘伟,邓彬.固溶时效处理对挤压态6082铝合金力学性能和组织的影响[J].金属热处理,2021,46(6):82-87. |
| |
| 作者姓名： | 刘吉兆 刘巍 袁浩登 吴远志 叶拓 刘伟 邓彬 |
| |
| 作者单位： | 1.湖南工学院 汽车零部件技术研究院, 湖南 衡阳 421002;2.湖南工学院 机械工程学院, 湖南 衡阳 421002 |
| |
| 基金项目： | 国家级大学生创新创业训练计划平台项目(S202011528013);湖南省自然科学基金(2018JJ4030,2019JJ30009,2019JJ50110);湖南省教育厅科学研究项目(20B166);衡阳市科技计划(2020jh012668,2019yj011174) |
| |
| 摘 要： | 采用拉伸试验机、光学显微镜和透射电镜等方法研究了固溶和时效处理工艺对挤压态6082铝合金力学性能和组织的影响。结果表明,经530 ℃固溶处理的试样强度高于550 ℃固溶处理的试样,经不同固溶温度处理后合金表现出不同的力学性能各向异性行为,而经时效处理后合金的屈服强度显著提升。550 ℃固溶处理的合金,晶粒明显长大。经时效处理后的试验合金中分布着大量的针状析出相,能有效阻碍位错的运动,提升材料的强度。经不同固溶+时效处理后的挤压态试验合金拉伸断口处均发现大量的韧窝,表现出韧性断裂的特征。
|
| 关 键 词： | 固溶时效处理 6082铝合金 力学性能 显微组织 各向异性 |
| 收稿时间： | 2021-02-02 |
Effects of solution and aging treatment on mechanical properties and microstructure evolution of as-extruded 6082 aluminum alloy |
| |
| Liu Jizhao,Liu Wei,Yuan Haodeng,Wu Yuanzhi,Ye Tuo,Deng Bin.Effects of solution and aging treatment on mechanical properties and microstructure evolution of as-extruded 6082 aluminum alloy[J].Heat Treatment of Metals,2021,46(6):82-87. |
| |
| Authors: | Liu Jizhao Liu Wei Yuan Haodeng Wu Yuanzhi Ye Tuo Deng Bin |
| |
| Affiliation: | 1. Research Institute of Automobile Parts Technology, Hunan Institute of Technology, Hengyang Hunan 421002, China;2. School of Mechanical and Engineering, Hunan Institute of Technology, Hengyang Hunan 421002, China |
| |
| Abstract: | Effects of solution and aging treatment on mechanical properties and microstructure of as-extruded 6082 aluminum alloy were studied by using tensile testing machine, optical microscope and transmission electron microscope. The results show that the strength of the specimens solution treated at 530 ℃ is higher than that of specimens solution treated at 550 ℃, and the alloy shows different mechanical properties anisotropy after solution treatment at different temperatures, the yield strength of the alloy is significantly improved after aging treatment. The grain size of the alloy solution treated at 550 ℃ is obviously coarser. A large number of needle precipitates in the alloy are distributed after aging treatment, which can effectively hinder the movement of dislocation and enhance the strength of the alloy. A large number of dimples are found in the tensile fracture of the as-extruded alloy after different solution and aging treatments, showing the characteristics of ductile fracture. |
| |
| Keywords: | solution and aging treatment 6082 aluminum alloy mechanical properties microstructure anisotropy |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《金属热处理》浏览原始摘要信息 |
|
点击此处可从《金属热处理》下载全文 |
|
