中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
Vol. 21 Special 1 March 2011 |
AM50 Mg alloy
(Advanced Material Division, Korea Institute of Industrial Technology,
7-47 Songdo-Dong, Yeonsu-Gu, Incheon 406-840, Korea)
Abstract:Oxidation and burning behaviors were studied for CaO added AM50 Mg composites which were manufactured by conventional melting and casting processes without SF6 protective gas. CaO added AM50 Mg composites show the stable oxidation resistance, while AM50 Mg alloys show the poor oxidation resistance. The effects of CaO addition on the burning resistance under ambient, nitrogen and dry air atmospheres were examined for CaO added AM50 Mg composites. With increasing CaO addition, the burning temperature increases under ambient, nitrogen and dry air atmospheres. The burning temperatures of small test specimen under all conditions greatly increase even by 0.3% CaO (mass fraction) addition into AM50 Mg alloys.
Key words: Mg alloy; CaO; oxidation behavior; burning behavior