1. MECHANICAL PROPERTIES OF HIGH STRENGTH Al-Mg ALLOY SHEET.
- Author
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BONG-JAE CHOI, KYUNG-EUI HONG, and YOUNG-JIG KIM
- Subjects
- *
ALUMINUM alloys , *MAGNESIUM alloys , *STRENGTH of materials , *SOLID solutions , *PROPERTIES of matter - Abstract
The aim of this research is to develop the high strength Al alloy sheet for the automotive body. For the fabrication Al-Mg alloy sheet, the composition of alloying elements was designed by the properties database and CALPHAD (Calculation Phase Diagram) approach which can predict the phases during solidification using thermodynamic database. Al-Mg alloys were designed using CALPHAD approach according to the high content of Mg with minor alloying elements. After phase predictions by CALPHAD, designed Al-Mg alloys were manufactured. Addition of Mg in Al melts were protected by dry air/Sulphur hexafluoride (SF6) mixture gas which can control the severe Mg ignition and oxidation. After rolling procedure of manufactured Al-Mg alloys, mechanical properties were examined with the variation of the heat treatment conditions. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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