Effect of solution temperature on microstructure and mechanical properties  of 7075 aluminum alloy sheet

doi:10.13251/j.issn.0254-6051.2022.03.023

Abstract

Abstract: Hardness and compression tests of 7075 aluminum alloy sheet treated by solution treatment at different temperatures were carried out. Microstructure evolution of the rolled 7075 aluminum alloy plate was analyzed by means of optical microscopy (OM), electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). The results show that with the increase of solution temperature, the hardness and maximum compressive strength of the 7075 aluminum alloy first increase and then decrease, which reaches the peak at 520 ℃. This is because the increase of solution temperature is conducive to dissolution of the second phase into the matrix, at the same time, the dislocation density decreases and the grains grow. The anisotropy of mechanical properties of the sheet decreases with the increase of solution temperature. This is because with the increase of solution temperature, the original deformed fiber structure transforms to equiaxed grains, and the phenomenon of grain growth occurs, and the preferred orientation decreases.

Key words: solution treatment, 7075 aluminum alloy, mechanical properties, microstructure

CLC Number:

TG146.2

Ye Tuo, Tang Ming, Liu Jizhao, Liu Wei, Wu Yuanzhi, Liu Wei, Xu Wen. Effect of solution temperature on microstructure and mechanical properties of 7075 aluminum alloy sheet[J]. Heat Treatment of Metals, 2022, 47(3): 119-123.

References

[1]丁轩, 甘玉荣, 蒋爱娟, 等. 时效处理对7A55铝合金微观组织和性能的影响[J]. 金属热处理, 2021, 46(9): 120-123.
Ding Xuan, Gan Yurong, Jiang Aijuan, et al. Influence of aging treatment on microstructure and properties of 7A55 aluminum alloy[J]. Heat Treatment of Metals, 2021, 46(9): 120-123.
[2]李民, 李云, 徐玉国, 等. 固溶处理对7B04铝合金冷轧板组织性能的影响[J]. 金属热处理, 2020, 45(9): 105-110.
Li Min, Li Yun, Xu Yuguo, et al. Effect of solution treatment on microstructure and properties of cold rolling 7B04 aluminum alloy sheet[J]. Heat Treatment of Metals, 2020, 45(9): 105-110.
[3]Zhang Z Q, Yu J H, He D Y. Influence of contact solid-solution treatment on microstructures and mechanical properties of 7075 aluminum alloy[J]. Materials Science and Engineering A, 2018, 743: 500-503.
[4]邓运来, 张新明. 铝及铝合金材料进展[J]. 中国有色金属学报, 2019, 29(9): 2115-2141.
Deng Yunlai, Zhang Xinming. Development of aluminum and aluminum alloy[J]. The Chinese Journal of Nonferrous Metals, 2019, 29(9): 2115-2141.
[5]Jiang J F, Wang Y, Liu Y Z, et al. Microstructure and mechanical properties of 7005 aluminum alloy processed by one-pass equal channel reciprocating extrusion[J]. Transactions of Nonferrous Metals Society of China, 2021, 31(3): 609-625.
[6]孙杰, 房洪杰, 刘慧, 等. 7085铝合金的热处理工艺[J]. 金属热处理, 2019, 44(2): 187-191.
Sun Jie, Fang Hongjie, Liu Hui, et al. Heat treatment processes of 7085 aluminum alloy[J]. Heat Treatment of Metals, 2019, 44(2): 187-191.
[7]王珊, 杨春苗, 张日强, 等. 回归制度对7A20铝合金RRA过程中组织性能的影响[J]. 金属热处理, 2021, 46(11): 191-194.
Wang Shan, Yang Chunmiao, Zhang Riqiang, et al. Influence of retrogression treatment on microstructure and mechanical properties of 7A20 aluminum alloy during RRA treatment[J]. Heat Treatment of Metals, 2021, 46(11): 191-194.
[8]Liu L L, Pan Q L, Wang X D, et al. The effects of aging treatments on mechanical property and corrosion behavior of spray formed 7055 aluminum alloy[J]. Journal of Alloys and Compounds, 2018, 735: 261-276.
[9]祝国川, 熊柏青, 佟有志, 等. 固溶处理对7B52铝合金板材力学性能和断裂行为的影响[J]. 中国有色金属学报, 2017, 27(5): 877-884.
Zhu Guochuan, Xiong Baiqing, Tong Youzhi, et al. Effect of solution treatment on mechanical properties and fracture behavior of 7B52 aluminum alloy plate[J]. The Chinese Journal of Nonferrous Metals, 2017, 27(5): 877-884.
[10]王基月, 徐莉萍. 双级固溶处理对7075高强铝合金组织和性能的影响[J]. 金属热处理, 2020, 45(3): 166-168.
Wang Jiyue, Xu Liping. Effect of two-stage solution treatment on microstructure and properties of 7075 high strength aluminum alloy[J]. Heat Treatment of Metals, 2020, 45(3): 166-168.
[11]Xiao Y P, Pan Q L, Li W B, et al. Influence of retrogression and re-aging treatment on corrosion behavior of an Al-Zn-Mg-Cu alloy[J]. Materials and Design, 2011, 32(4): 2149-2156.
[12]Han N M, Zhang X M, Liu S D, et al. Effect of solution treatment on the strength and fracture toughness of aluminum alloy 7050[J]. Journal of Alloys and Compounds, 2011, 509(10): 4138-4145.
[13]Peng G S, Chen K H, Chen S Y, et al. Evolution of the second phase particles during the heating-up process of solution treatment of Al-Zn-Mg-Cu alloy[J]. Materials Science and Engineering A, 2015, 641: 237-241.
[14]Chen S Y, Chen K H, Peng G S, et al. Effect of heat treatment on hot deformation behavior and microstructure evolution of 7085 aluminum alloy[J]. Journal of Alloys and Compounds, 2012, 537: 338-345.
[15]张洪静, 黄晓冬, 孙有政, 等. 固溶温度对7050铝合金锻板组织和性能的影响[J]. 材料热处理学报, 2020, 41(11): 46-52.
Zhang Hongjing, Huang Xiaodong, Sun Youzheng, et al. Effect of solid solution temperature on microstructure and properties of 7050 aluminum alloy forging plate[J]. Transactions of Materials and Heat Treatment, 2020, 41(11): 46-52.
[16]Børvik T, Hopperstad O S, Pedersen K O. Quasi-brittle fracture during structural impact of AA7075-T651 aluminum plates[J]. International Journal of Impact Engineering, 2010, 37(5): 537-551.

Effect of solution temperature on microstructure and mechanical properties of 7075 aluminum alloy sheet

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Wang Yudai, Liu Yang, Zhu Yanyan, Tian Xiangjun, Cheng Xu, Ran Xianzhe, Qian Tingting. Effect of heat treatment on microstructure homogeneity and tensile properties of hybrid fabricated AerMet100 ultra-high strength steel [J]. Heat Treatment of Metals, 2022, 47(4): 1-9.
[2]	Zhang Ziyan, Chen Jun, Chen Xiaoya, Li Quan'an, Liu Jianxin. Effect of solution and aging treatment on microstructure and corrosion resistance of Mg-4Sm-3Gd-0.5Zr alloy [J]. Heat Treatment of Metals, 2022, 47(4): 10-16.
[3]	Liang Enpu, Xu Le, Yang Yong, Wang Maoqiu. Effects of Al and Cu additions on microstructure and mechanical properties of 40CrNi3MoV steel [J]. Heat Treatment of Metals, 2022, 47(4): 17-23.
[4]	Qi Xiaoliang, Li Yan, Ding Wei, Zhao Zengwu. Effect of original microstructure of medium manganese TRIP steel containing Al on microstructure and mechanical properties after intercritical annealing [J]. Heat Treatment of Metals, 2022, 47(4): 24-29.
[5]	Chen Baoan, Zhang Jingyuan, Zhu Zhixiang, Han Yu, Pan Xuedong, Zhang Lei, Chen Suhong. Effect of chemical composition on microstructure and properties of high strength Al-Mg-Si alloy [J]. Heat Treatment of Metals, 2022, 47(4): 30-38.
[6]	Wang Yinghu, Zheng Huaibei, Liu Tingyao, Song Lingxi, Bai Qingqing. Effect of solid solution treatment on microstructure and carbides of 53Cr21Mn9Ni4N heat-resistant steel [J]. Heat Treatment of Metals, 2022, 47(4): 39-45.
[7]	Chen Dongjun, Li Guangyang, Liu Gang. Effect of aging treatment on microstructure and mechanical properties of AlSi9Cu3 HPDC aluminum alloy [J]. Heat Treatment of Metals, 2022, 47(4): 53-56.
[8]	Chen Liansheng, Zhang Luyou, Tian Yaqiang, Yang Zixuan, Li Hongbin, Pan Hongbo, Wei Yingli. CCT curves and microstructure and properties of low-carbon high strength marine steel [J]. Heat Treatment of Metals, 2022, 47(4): 63-68.
[9]	Jia Changyuan, Huo Yuanming, He Tao, Huo Cunlong, Liu Keran. High temperature tensile deformation behavior and microstructure evolution law of 40CrNiMo steel [J]. Heat Treatment of Metals, 2022, 47(4): 69-74.
[10]	Wang Yunlong, Yu Wei, Zhang Yi, Shi Jiaxin, Li Minghui. Effect of austenitizing temperature on isothermal transformation and mechanical properties of bainite steel [J]. Heat Treatment of Metals, 2022, 47(4): 80-85.
[11]	Liu Liyan, Bi Wenzhen, Wei Xicheng. Effect of Mn element on microstructure evolution of galvanized coating of hot stamping steel [J]. Heat Treatment of Metals, 2022, 47(4): 93-99.
[12]	Luo Zaibin, Fan Zize, Peng Zhen. Research progress of light-weight high-entropy alloys [J]. Heat Treatment of Metals, 2022, 47(4): 100-107.
[13]	Fu Xibin, Chen Zihao, Zhang Ke, Zhao Shiyu, Sun Xinjun, Zhu Zhenghai, Liang Xiaokai, Yong Qilong. Effect of quenching temperature on microstructure and mechanical properties of high Ti low alloy wear-resistant steel [J]. Heat Treatment of Metals, 2022, 47(4): 122-127.
[14]	Su Pengji, Ma Yonglin, Dong Lili, Yang Xuefeng. Effect of magnetic field pre-annealing on microstructure and texture of CGO steel [J]. Heat Treatment of Metals, 2022, 47(4): 128-132.
[15]	Li Li, Zeng Yan, Wu Xiaochun. Heat treatment process optimization for 4Cr5Mo2VCo steel [J]. Heat Treatment of Metals, 2022, 47(4): 133-140.