Study on Microstructure and Properties of 105mm Thick 5083 Aluminum Alloy Hot-Rolled Plate

International Conference on Materials Sciences and Nanomaterials

材料科学;物理学

She, Xinwei^1,2 ; Jiang, Xianquan^1,2 ; Qi, Bao^2 ; Li, Quan^1 ; Li, Jiangyu^3 ; Li, Jun^4 ; Ran, Zhende^4

Chongqing Academy of Science and Technology, Chongqing

401123, China^1

Faculty of Materials and Energy, Southwest University, Chongqing

400715, China^2

Guangxi Liuzhou Yinhai Aluminium Co. Ltd, Guangxi

545006, China^3

Chongqing Gearbox Co. Ltd, Chongqing

402263, China^4

关键词: 5083 aluminum alloys;    Different thickness;    Dislocation distributions;    Dislocation movement;    Microstructure and properties;    Scanning electrons;    Strength and plasticities;    Thickness direction;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/230/1/012037/pdf
DOI  :  10.1088/1757-899X/230/1/012037

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The microstructure and tensile property of 105mm thick 5083 aluminum alloy hot-rolled plate in different thickness layers were investigated by optical microscopy, scanning electron microscopy, transmission electron microscopy and tensile tests. The results show that along the thickness direction, the microstructure and tensile property are inhomogeneous, and a "double low" phenomenon, which has low strength and plasticity, occurs in the central area. There are many sub-micron sized second phases in the center and near-center area, which cause two completely different dislocation distribution states. they can effectively prevent the dislocation movement during plastic deformation, and improve the strength of the alloy.