Improved Mechanical Properties of AZ31 Alloy Fabricated by Multi-Directional Forging

In this work, the tensile properties of AZ31 Mg alloy deformed by multi-directional forging (MDF) were investigated at room temperature. And the enhanced mechanical properties of yield strength of 93 MPa, ultimate tensile strength (UTS) of 253 MPa and elongation of 29% were achieved. It is discovere...

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Bibliographic Details
Published in:Key Engineering Materials 2017, Vol.727, p.124-131
Main Authors: Wang, Rui, Du, Xing Hao, Chen, Cai, Wu, Bao Lin
Format: Article
Language:English
Subjects:
Deformation
Dislocations
Forging
Grains
Magnesium base alloys
MDF
Mechanical properties
Ultimate tensile strength
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Summary:In this work, the tensile properties of AZ31 Mg alloy deformed by multi-directional forging (MDF) were investigated at room temperature. And the enhanced mechanical properties of yield strength of 93 MPa, ultimate tensile strength (UTS) of 253 MPa and elongation of 29% were achieved. It is discovered that the MDF deformation makes the crystallographic orientation of original as-cast microstructure randomization, providing the condition for the following twinning during tensile deformation. In addition, the original fine grains and continuously refined grains can enhance the strength by restricting the growth of grains and motion of dislocations.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.727.124