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Materials 2018, 11(7), 1157; https://doi.org/10.3390/ma11071157

Tensile Properties and Corrosion Behavior of Extruded Low-Alloyed Mg–1Sn–1Al–1Zn Alloy: The Influence of Microstructural Characteristics

1
Shanxi Key Laboratory of Advanced Magnesium-Based Materials, Taiyuan University of Technology, Taiyuan 030024, China
2
School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
3
School of Materials Science and Engineering, Seoul National University, Seoul 08826, Korea
*
Authors to whom correspondence should be addressed.
Received: 15 May 2018 / Revised: 29 June 2018 / Accepted: 3 July 2018 / Published: 6 July 2018
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Abstract

A low-alloyed Mg–Sn–Al–Zn system was developed and successfully fabricated through the extrusion process. The dependence of tensile properties and corrosion behavior on microstructural characteristics of the studied alloy has been investigated. After extrusion, the alloy consists of fine dynamically recrystallized (DRXed) grains of ~2.65 μm and strongly textured coarse unDRXed grains. As a consequence, the extruded alloy showed a high-tensile yield strength (YS) of 259 MPa, ultimate tensile strength (UTS) of 297 MPa and elongation (EL) of 19.0%. The strengthening response was discussed in terms of grain size, texture and solutes. The as-extruded alloy presented severe pitting corrosion and the dependence of corrosion properties on the crystallographic orientation and the formation of corrosion products was analyzed. View Full-Text
Keywords: magnesium alloy; extrusion; texture; tensile property; corrosion behavior magnesium alloy; extrusion; texture; tensile property; corrosion behavior
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Cheng, W.; Zhang, Y.; Ma, S.; Arthanari, S.; Cui, Z.; Wang, H.-X.; Wang, L. Tensile Properties and Corrosion Behavior of Extruded Low-Alloyed Mg–1Sn–1Al–1Zn Alloy: The Influence of Microstructural Characteristics. Materials 2018, 11, 1157.

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