Transactions of Materials and Heat Treatment

Title：Influence of deformation-heat treatment process on microstructure for 6082 aluminum alloy

Authors： Zeng Fanyi1 Zuo Changbing2 Zhang Haidong1 Ren Zhihua1 Wang Guowen2 Deng lei1 Wang Xinyun1 Jin Junsong1

Unit：

KeyWords：

ClassificationCode：TG316

year,vol(issue):pagenumber：2021,46(9):204-211

Abstract：

In order to explore the influence laws of different deformation and heat treatment processes on microstructures and mechanical properties of 6082 aluminum alloy, three kinds of experiments of conventional forming, annealing-forming and solid solution-forming for 6082 aluminum alloy were carried out, and the microstructures and mechanical properties were characterized. The results show that annealing and solid solution treatments can reduce the proportion of small-angle grain boundaries in the extruded sample and effectively weaken its single strong S texture. When deforming at 400 ℃-0.1 s-1, the annealing-forming and solid solution-forming processes can effectively avoid the abnormal grain growth phenomenon in the conventional forming, while deforming at 500 ℃/0.1 s-1, the average grain sizes of the sample under the annealing-forming and solid solution-forming processes are increased compared with those of the conventional forming. The results of process experiment show that using the solid solution-forming process, the tensile strength of 6082 aluminum alloy forgings reaches 276.0 MPa, which is slightly lower than 283.6 MPa of the conventional forming forgings, but the coarse grains of forgings are significantly reduced,Which provides a new route for the production of 6082 aluminum alloy forgings with high quality.

Funds：

湖北省重点研发计划（2020BAB040）;中央高校基本科研业务费专项资金项目(2019kfyXMBZ030)

曾凡宜（1996-），男，硕士研究生 E-mail：M201970925@hust.edu.cn 通信作者：邓磊（1982-），男，博士，副教授 E-mail：denglei@hust.edu.cn

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