固溶时效处理对稀土铝合金力学性能及组织的影响

doi:10.13251/j.issn.0254-6051.2024.05.032

金属热处理 ›› 2024, Vol. 49 ›› Issue (5): 193-198.DOI: 10.13251/j.issn.0254-6051.2024.05.032

固溶时效处理对稀土铝合金力学性能及组织的影响

刘子知^1,2, 孙福臻^1,2, 李晓旭^1,2, 李蕙宇^1,2, 张泉达^1,2, 穆雪松¹, 赵岩¹

1.中国机械科学研究总院集团有限公司先进成形技术与装备国家重点实验室, 北京 100044;
2.北京机科国创轻量化科学研究院有限公司, 北京 101407

收稿日期:2023-08-17 修回日期:2024-01-12 出版日期:2024-05-25 发布日期:2024-06-28
通讯作者: 张泉达,高级工程师,E-mail:zhangquandadgu@163.com
作者简介:刘子知(1994—),男,助理工程师,硕士,主要研究方向为高强金属热成形工艺,E-mail:liuzizhizz@163.com。
基金资助:
中国机械科学研究总院集团技术发展基金(2021110032020656)

Influence of solution treatment and aging on mechanical properties and microstructure of rare earth aluminum alloy

Liu Zizhi^1,2, Sun Fuzhen^1,2, Li Xiaoxu^1,2, Li Huiyu^1,2, Zhang Quanda^1,2, Mu Xuesong¹, Zhao Yan¹

1. State Key Laboratory of Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology Group Co., Ltd., Beijing 100044, China;
2. Beijing National Innovation Institute of Lightweight Ltd., Beijing 101407, China

Received:2023-08-17 Revised:2024-01-12 Online:2024-05-25 Published:2024-06-28

摘要/Abstract

摘要： 研究了4种厚度稀土铝合金板的固溶时效处理工艺(480 ℃固溶水冷和120 ℃×24 h时效处理),对热处理前、后的合金进行了室温拉伸试验,通过EBSD对微观组织进行了定性和定量研究,并对拉伸断口形貌进行了观察分析。结果表明,该固溶时效处理工艺对提高稀土铝合金的强度效果明显,对3.0 mm厚板料的增强效果最为显著,此外对合金的塑性具有一定的提升作用;固溶时效处理后,3.0 mm厚合金相比1.2 mm厚合金,其各向异性更强,大角度晶界角和小角度晶界角的数量更多,晶界总长度增加,平均晶粒尺寸更小。固溶时效处理对试验稀土铝合金有良好的细晶强化和位错强化效果。热处理前试验稀土铝合金的断裂方式均为韧性断裂,3.0 mm厚合金显示出比1.2 mm厚合金更好的塑性;经固溶时效处理后,1.2 mm厚合金试样的断口形貌发生变化,材料塑性进一步提高,3.0 mm厚合金的塑性则相比热处理前有所降低。

关键词: 稀土铝合金, 固溶时效处理, 室温拉伸, 微观组织

Abstract: Solution treatment and aging process (solution treating at 480 ℃ for different time, water cooling, and aging at 120 ℃ for 24 h) of four thicknesses of rare earth aluminum alloy plates were studied, room temperature tensile tests were conducted on the alloy before and after heat treatment. The microstructure was qualitatively and quantitatively studied through EBSD, and the tensile fracture morphology was observed and analyzed. The results show that the solution treatment and aging process has a significant effect on improving the strength of rare earth aluminum alloy, with the most significant strengthening effect on the plate with thickness of 3.0 mm, in addition, it has a certain improvement effect on the plasticity of the alloy. After solution treatment and aging, the alloy with a thickness of 3.0 mm has stronger anisotropy compared to the alloy with a thickness of 1.2 mm, with more high and low angle grain boundaries, increased total length of grain boundaries, and smaller average grain size. Solution treatment and aging has a good effect on fine grain strengthening and dislocation strengthening of the rare earth aluminum alloy. The fracture mode of the rare earth aluminum alloy before heat treatment is ductile fracture, and the alloy with a thickness of 3.0 mm shows better plasticity than the 1.2 mm thick alloy. After solution treatment and aging, the fracture morphology of the 1.2 mm thick alloy specimen changes, and the plasticity further improves, while the plasticity of the 3.0 mm thick alloy decreases compared to that before heat treatment.

Key words: rare earth aluminum alloy, solution treatment and aging, room temperature tension, microstructure

中图分类号:

TG146

刘子知, 孙福臻, 李晓旭, 李蕙宇, 张泉达, 穆雪松, 赵岩. 固溶时效处理对稀土铝合金力学性能及组织的影响[J]. 金属热处理, 2024, 49(5): 193-198.

Liu Zizhi, Sun Fuzhen, Li Xiaoxu, Li Huiyu, Zhang Quanda, Mu Xuesong, Zhao Yan. Influence of solution treatment and aging on mechanical properties and microstructure of rare earth aluminum alloy[J]. Heat Treatment of Metals, 2024, 49(5): 193-198.

参考文献

[1]余聪, 陈乐平, 周全. 稀土元素对铝合金组织与性能影响的研究进展[J]. 特种铸造及有色合金, 2021, 41(2): 241-246.
Yu Cong, Chen Leping, Zhou Quan. Research progress in effects of rare earth elements on microstructure and properties of aluminum alloy[J]. Special Casting and Nonferrous Alloys, 2021, 41(2): 241-246.
[2]Bariani P F, Bruschi S, Ghiotti A, et al. Hot stamping of AA5083 aluminium alloy sheets[J]. CIRP Annals- Manufacturing Technology, 2013, 62(1): 251-254.
[3]Zhou J, Wang B, Lin J, et al. Forming defects in aluminum alloy hot stamping of side-door impact beam[J]. Transactions of Nonferrous Metals Society of China, 2014, 24(11): 3611-3620.
[4]Poole W J, Saeter J A, Skjervold S, et al. A model for predicting the effect of deformation after solution treatment on the subsequent artificial aging behavior of AA7030 and AA7108 alloys[J]. Metallurgical and Materials Transactions A, 2000, 31(9): 2327-2338.
[5]胡志力, 程彬洋, 魏鹏飞, 等. 7075铝合金热成形析出相演化规律和强度预测模型[J]. 锻压技术, 2021, 46(9): 105-111.
Hu Zhili, Cheng Binyang, Wei Pengfei, et al. Evolution laws of precipitated phases and strength prediction model for 7075 aluminum alloy during hot forming[J]. Forging and Stamping Technology, 2021, 46(9): 105-111.
[6]林楷, 尤彬波, 谢国文, 等. 高强铝合金热冲压工艺技术与数值模拟研究[J]. 汽车工艺与材料, 2020(9): 1-5.
[7]闵峻英, 卢嘉昕, 魏一凡. 工艺参数对热冲压成形AA7075力学性能的影响[J]. 塑性工程学报, 2021, 28(6): 96-103.
Min Junying, Lu Jiaxin, Wei Yifan. Effect of process parameters on mechanical properties of hot-stamped AA7075[J]. Journal of Plasticity Engineering, 2021, 28(6): 96-103.
[8]陈扬, 孙正启, 张晓欣, 等. 热处理工艺参数对7075铝合金T6态组织和性能的影响[J]. 塑性工程学报, 2021, 28(7): 145-149.
Chen Yang, Sun Zhengqi, Zhang Xiaoxin, et al. Effect of heat treatment process parameters on microstructure and properties of 7075 aluminum alloy in T6 state[J]. Journal of Plasticity Engineering, 2021, 28(7): 145-149.
[9]王义林, 刘勇, 耿会程, 等. 高强铝合金热冲压成形技术研究进展[J]. 航空制造技术, 2019, 62(16): 22-35.
Wang Yilin, Liu Yong, Geng Huicheng, et al. Research progresses of hot stamping technology for high strength aluminum alloy sheet[J]. Aeronautical Manufacturing Technology, 2019, 62(16): 22-35.
[10]李芳, 牛天昊, 王雨, 等. 固溶处理时间对7050铝合金挤压材料力学性能及耐腐蚀性能的影响[J]. 材料热处理学报, 2021, 42(7): 39-48.
Li Fang, Niu Tianhao, Wang Yu, et al. Effect of solution treatment time on mechanical properties and corrosion resistance of extruded 7050 aluminum alloy[J]. Transactions of Materials and Heat Treatment, 2021, 42(7): 39-48.
[11]吴楠, 富公诚, 杨旭, 等. 热处理对汽车用铝合金性能的影响[J]. 铝加工, 2020(2): 36-39.
Wu Nan, Fu Gongcheng, Yang Xu, et al. Effect of heat treatment on properties of automotive aluminum alloy[J]. Aluminium Fabrication, 2020(2): 36-39.
[12]刘立博, 乔及森, 许佳敏, 等. 稀土Y对挤压态7075铝合金微观组织和力学性能的影响[J]. 有色金属工程, 2022, 12(3): 47-55.
Liu Libo, Qiao Jisen, Xu Jiamin, et al. Effect of rare earth yttrium on mechanical properties and microstructure of extruded 7075 aluminum alloy[J]. Nonferrous Metals Engineering, 2022, 12(3): 47-55.
[13]周炎, 夏涵羿, 史坤, 等. 升温时效对7050铝合金组织及性能的影响[J]. 特种铸造及有色合金, 2021, 41(6): 730-733.
Zhou Yan, Xia Hanyi, Shi Kun, et al. Effects of heating-aging on the microstructure and properties of 7050 aluminum alloy[J]. Special Casting and Nonferrous Alloys, 2021, 41(6): 730-733.
[14]马青娜, 邵飞, 白林越, 等. 7075铝合金FSW接头腐蚀疲劳性能及断裂特征[J]. 焊接学报, 2020, 41(6): 72-78.
Ma Qingna, Shao Fei, Bai Linyue, et al. Study on corrosion fatigue properties and fracture characteristics of 7075 aluminum alloy FSW joint[J]. Transactions of the China Welding Institution, 2020, 41(6): 72-78.
[15]郭伟. 7075铝合金应力时效强化与机制研究[D]. 秦皇岛: 燕山大学, 2015.

固溶时效处理对稀土铝合金力学性能及组织的影响

Influence of solution treatment and aging on mechanical properties and microstructure of rare earth aluminum alloy

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