Metals and AlloysNo Access

Effect of cold rolling on microstructural and mechanical properties of MG-7LI alloy

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, P. R. China

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Yanxin Qiao

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, P. R. China

Shenzhen Key Lab Human Tissue Regenerate and Repair, Peking University, Shenzhen Institute, Shenzhen 518057, P. R. China

E-mail Address: yxqiao@just.edu.cn

Corresponding authors.

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Baojie Wang

School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, P. R. China

E-mail Address: bjwang@alum.imr.ac.cn

Corresponding authors.

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Huiling Zhou

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, P. R. China

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, and

Yuxin Wang

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, P. R. China

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https://doi.org/10.1142/S0217979220400354Cited by:0 (Source: Crossref)

This article is part of the issue:

SPECIAL ISSUE — MMPD 2019

Abstract

The influence of rolling on nanomechanical and mechanical behavior of Mg-7Li alloy was investigated by nanoindentation, tensile test and scanning electron microscopy (SEM), respectively. The $α$ $α$ -Mg phase elongated along the rolling direction and gradually cracked. As the rolling ratio increased from 3 to 10, the hardness of $α$ $α$ -Mg and $β$ $β$ -Li phase increased by 7.35% and 20.75%, respectively. The fracture of alloys changed from ductile fracture to quasi-cleavage fracture. The yield strength and ultimate tensile strength increased by 23 MPa and 12 MPa, respectively, while elongation reduced by 12.5%.

Keywords:

PACS: 82.45.Qr

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