机械合金化Mg-Ni-Cr-Ti镁基电池合金的组织与性能研究  

Microstructure and properties of mechanical alloying Mg-Ni-Cr-Ti Mg-based battery alloys

作　　者：李海斌[1] 姬鹏 LI Hai-bin;JI Peng(Tianjin Vocational Institute,Tianjin 300410,China;College of Mechanical and Equipment Engineering,Hebei University of Engineering,Handan 056038,China)

机构地区：[1]天津职业大学,天津300410 [2]河北工程大学机械与装备工程学院,河北邯郸056038

出　　处：《轻合金加工技术》2019年第7期68-71,共4页Light Alloy Fabrication Technology

基　　金：国家自然科学基金项目(51205105)

摘　　要：采用机械合金化方法制备了Mg-Ni-Cr-Ti新型镁基电池合金,进行了XRD、SEM及电化学稳定性的测试与分析。结果表明:球磨转速400r/min、球磨时间38h时,合金由Mg2Ni相组成,合金粉末未发生明显的团聚现象,试验合金主要具有较好的电化学稳定性。与传统Mg2Ni合金相比,该新型合金充放电循环35次后放电容量保持率从24%增大到88%。A new Mg-Ni-Cr-Ti alloy for Mg-based battery is prepared by mechanical alloying,its microstructure is analyzed by XRD and SEM,and its electrochemical stability is also tested. The results show that when ball milling speed is 400r/min and ball milling time is 38 h,the test alloy is mainly composed of Mg2 Ni phase,agglomeration seldom appears, electrochemical stability keeps good. Compared with the traditional Mg2 Ni alloy,the discharge capacity retention rate of the new alloy increases from 24% to 88% after 35 cycles of charge and discharge.

关 键 词：Mg-Ni-Cr-Ti镁基电池合金 机械合金化 电化学稳定性 

分 类 号：TG164.22[金属学及工艺—热处理]