固溶温度对Al-Mg-Sn-Ga-Bi合金显微组织及电化学性能的影响  

Effect of Solution Temperature on the Microstructure and Electrochemical Properties of Al-Mg-Sn-Ga-Bi Alloy

作　　者：刘宏亮 王月莹 沙剑春 杨炳林 贾志明 王鑫 高思睿 何立子[1,2] LIU Hongliang;WANG Yueying;SHA Jianchun;YANG Binglin;JIA Zhiming;WANG Xin;GAO Sirui;HE Lizi(Key Laboratory of Electromagnetic Processing of Materials of Ministry of Education,Northeastern University,Shenyang 110819,China;School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学材料电磁过程教育部重点实验室,沈阳110819 [2]东北大学材料科学与工程学院,沈阳110819

出　　处：《材料导报》2023年第14期75-80,共6页Materials Reports

摘　　要：通过扫描电镜、静态腐蚀、电化学腐蚀以及恒流放电测试,研究固溶温度对新型Al-Mg-Sn-Ga-Bi合金显微组织、电化学性能的影响。选择合适温度的固溶处理可以有效调控析出相的形貌、数量和分布,进而显著改善合金的耐蚀性和放电性能。经过540℃固溶处理的合金的自腐蚀速率为0.25 mg/(cm^(2)·min),比铸态合金低一个数量级;在以100 mA/cm^(2)的电流密度放电时,放电电压能达到1.157 V,阳极利用率高达89.49%。The effects of solution temperature on the microstructure and electrochemical properties of Al-Mg-Sn-Ga-Bi alloys were investigated by microstructure observation,static corrosion,electrochemical corrosion,and constant current discharge tests.The selection of a suitable solid solution temperature can improve the corrosion resistance and discharge properties of the alloys by regulating the morphology,quantity and distribution of the second phase.The alloys after solid solution treatment at 540℃has a self-corrosion rate of 0.25 mg/(cm^(2)·min)which is an order of magnitude lower than that of the as-cast alloy;its discharge voltage and anode utilization can reach 1.157 V and 89.49%at 100 mA/cm^(2).

关 键 词：固溶处理 铝阳极 铝空气电池 电化学性能 放电性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程]