摘要
试验制备了Mg-19Al-24Ga、Mg-15Al-25Ga和Mg-15Al-31Ga 3种三元合金,研究了其物相组成、显微组织和储热性能。结果表明,3种合金相组成均为Mg_(5)Ga_(2)、Al_(12)Mg_(17)和α-Mg,具有较高的相变潜热,且相变温度均处于中温储热温度范围(90~400℃),其中Mg-19Al-24Ga合金具有最低的相变温度和最高的相变潜热,分别为373.67℃和172.70J·g^(-1),是较好的中温相变储热材料。
Three ternary alloys,Mg-19Al-24Ga,Mg-15Al-25Ga and Mg-15Al-31Ga,were designed and prepared experimentally,and their phase composition,microstructure and heat storage properties were investigated.The results show that the all alloys consist of Mg_(5)Ga_(2),Al_(12)Mg_(17)andα-Mg phases,and have high latent heat of phase transition,of which the temperature are in the range of middle temperature thermal energy storage(90~400℃).The Mg-19Al-24Ga alloy has the lowest phase transition temperature and the highest latent heat,which are 373.67℃and 172.70J·g^(-1),respectively.Therefore,Mg-19Al-24Ga alloy can be a good phase transition material for middle temperature heat storage.
作者
文红艳
叶沛沂
董旭
徐连友
范晓明
Wen Hongyan;Ye Peiyi;Dong Xu;Xu Lianyou;Fan Xiaoming(School of Materials Science and Engineering,Wuhan University of Technology;Huanggang Normal University)
出处
《特种铸造及有色合金》
CAS
北大核心
2022年第1期36-39,共4页
Special Casting & Nonferrous Alloys
关键词
Mg-Al-Ga合金
相变材料
热储能
微观组织
Mg-Al-Ga Alloy
Phase Transition Materials
Thermal Energy Storage
Microstructure
作者简介
第一作者:文红艳,女,1971年出生,实验师,武汉(430070),E-mail:wenhongyan@whut.edu.cn;通信作者:董旭,男,1982年出生,讲师,湖北黄冈(438000),E-mail:dongyimo7508108@yeah.net
