Design of an age hardening Mg-Li alloy and its aging behavior

作     者：HaoZhong PeiyingLiu TietaoZhou HuanxiLi 

作者机构：SchoolofMaterialsScienceandEngineeringBeijingUniversityofAeronauticsandAstronauticsBeijing100083China 

基　　金：This work was kindly supported by National High Technology Research and Development Program of China (No.2003AA30507l) 

出 版 物：《Journal of University of Science and Technology Beijing》 (北京科技大学学报（英文版）)

年 卷 期：2005年第12卷第2期

页      码：182-186页

摘      要：An effort was made to design an age hardening Mg-Li alloy based on the phase diagrams calculated by means of THERMO-CALC —a thermodynamic software. Experiments were carried out to verify the calculated results by melting the alloy and examining its structure and aging behavior. The results show that the alloy possesses a structure constituent as expected, besides, the alloy has apparent aging behavior and over aging happens even at lower temperature. Metastable (Mg, Li, Al, Zn) phase has been identified when the hardness reaches the aging peak. With the increase of the aging time, (Mg, Li, Al, Zn) phase transforms to stable α phase and over aging happens.

主 题 词：Mg-Li alloy composition design thermodynamic calculations aging 

学科分类：07[理学] 070205[070205] 08[工学] 080502[080502] 0805[工学-能源动力学] 0702[理学-物理学类] 

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