Development of High-Performing Extruded Magnesium Alloy

Hyun Kyu Lim; Young Kyun Kim; Bong Hwan Kim; Dae Kuen Kim; Young Ok Yoon; Shae K. Kim

doi:10.4028/www.scientific.net/MSF.879.2495

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HomeMaterials Science ForumMaterials Science Forum Vol. 879Development of High-Performing Extruded Magnesium...

Development of High-Performing Extruded Magnesium Alloy

Abstract:

To develop high-performing extruded magnesium alloys, we had investigated the effect of zinc into Mg-5Gd-2Y-xZn-0.7Ca (x = 1, 2, 3, and 4) alloys. With increasing of zinc content up to 3 wt.%, the volume fraction of LPSO phases and strength increased, while the volume fraction of LPSO and strength rapidly decreased when zinc content was 4 wt.% in Mg-5Gd-2Y-xZn-0.7Ca alloys. Ignition temperature and corrosion rate were directly proportional to the increase of zinc content in this study. The optimum zinc content was 2 wt.% in Mg-5Gd-2Y-xZn-0.7Ca alloys and VWZO52207 alloy exhibited high strengths (TYS: 407 MPa and UTS: 424 MPa), adequate elongation (6.9 %), and high ignition temperature (934 ^oC).

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Periodical:

Materials Science Forum (Volume 879)

Pages:

2495-2500

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.879.2495

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Online since:

November 2016

Authors:

Hyun Kyu Lim*, Young Kyun Kim, Bong Hwan Kim, Dae Kuen Kim, Young Ok Yoon, Shae K. Kim

Keywords:

Extrusion, High Strength, Ignition-Resistance, Wrought Mg Alloy

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