铜基非晶合金的动态性能及杆式射流仿真研究  

Dynamic properties and rod jet simulation of copper-based bulk metallic glasses

作　　者：周秉文[1] 孟凡迪 张全孝[2] 田开文[2] 黄伟明[2] 孟令刚[1] 亚斌[1] 张兴国[1] ZHOU Bingwen;MENG Fandi;ZHANG Quanxiao;TIAN Kaiwen;HUANG Weiming;MENG Linggang;YA Bin;ZHANG Xingguo(School of Materials Science and Engineering,Dalian University of Technology,Dalian 116024,China;Ningbo Branch of Chinese Academy of Ordnance Science,Ningbo 315103,China)

机构地区：[1]大连理工大学材料科学与工程学院,辽宁大连116024 [2]中国兵器科学研究院宁波分院,浙江宁波315103

出　　处：《兵器材料科学与工程》2020年第6期1-5,共5页Ordnance Material Science and Engineering

基　　金：国家自然科学基金(51971049);装备预先研究项目(xxxxxxxx603);中央高校基本科研业务费项目(DUT19GF110)。

摘　　要：为探索高强度、高硬度和高非晶形成能力的铜基块体非晶合金用作药型罩材料的可能性,通过铜模吸铸法制备Cu45Zr43Al4Ag8块体非晶合金棒,研究其静态压缩断口形貌及在不同应变率下的动态压缩特性,用Autodyn-2D动力学仿真软件模拟铜基块体非晶合金药型罩的杆式射流过程。结果表明:Cu45Zr43Al4Ag8块体非晶合金静态压缩断面均匀分布着脉络状花样,随应变率增大,动态抗压强度先升后降,具有应变率敏感性;仿真研究的铜基块体非晶合金药型罩杆式射流成形能力好,不易出现颈缩,用作药型罩材料可保证良好的侵彻性能。In order to explore the applicability of copper-based bulk metallic glasses to shaped charge liner,which have high strength,high hardness and glass-forming ability,rods of Cu45Zr43Al4Ag8 alloys were prepared by water-cooled copper mold method.Static compressive properties and fracture morphology and dynamic compressive properties at different strain rates were studied.The formation process of shaped charge rod jet was simulated by using Autodyn-2 D.The results show that welldeveloped uniform distributional vein patterns exist on the static compressive fracture surface.The dynamic compressive strength firstly increases and then decreases with the strain rate increasing,indicating the alloy has strain-rate sensitivity.The simulation analysis shows that shaped charge liners of copper-based bulk metallic glasses has good jet-forming abilities and is hard to neeking.These features endow the copper-based bulk metallic glasses with fine penetration ability when used as shaped charge liner.

关 键 词：铜基块体非晶合金 动态压缩 应变率 杆式射流仿真 

分 类 号：TB383[一般工业技术—材料科学与工程] TJ410[兵器科学与技术—火炮、自动武器与弹药工程]