EFFECT OF MINOR ELEMENTS ON THE CREEP RESISTANCE OF Mg-Zn-Mn-(Ca) ALLOY |
D. M. KANG, J. O. AN, J. S. KWAK |
Pukyong National University |
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ABSTRACT |
Along with alumium, titanium and composite alloys, magnesium alloys have been given much attention by industry for applications such as lightweight automobiles and electronics because of their high strength, low specific density and good damping characteristics. In this paper, creep tests were done with magnesium alloys (Mg?3% Zn?1% Mn, Mg?1.2% Zn?1% Mn, and Mg?3% Zn?1% Mn?0.3% Ca) containing different amounts of Zn to investigate the effect of Zn and Ca on the deformation behavior and the rupture time for Mg alloy creep under elevated temperatures. The alloys were obtained as follows: (1) pure magnesium (9.7 kg) was melted at 720 |
Key Words:
Deformation mechanism, Stress exponent, Activation energy, Creep rupture life, Magnesium alloy |
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