热处理温度对铝-铝-钢与铝-钛-钢爆炸复合板界面组织与性能的影响  

Effect of Heat Treatment Temperatures on the Interface Microstructures and Properties of Al-Al-steel and Al-Ti-steel Explosive Clad Plates

作　　者：穆晓彪 潘涛[2] 熊玮[1] 柴希阳[2] 罗小兵[2] 柴锋[2] MU Xiaobiao;PAN Tao;XIONG Wei;CHAI Xiyang;LUO Xiaobing;CHAI Feng(State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;Department of Structural Steels,Central Iron and Steel Research Institute,Beijing 100081,China)

机构地区：[1]武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉430081 [2]钢铁研究总院工程用钢研究所,北京100081

出　　处：《材料导报》2023年第19期195-200,共6页Materials Reports

基　　金：辽宁省科技重大专项项目(2019JH1/10100014)。

摘　　要：为评价铝-铝-钢与铝-钛-钢两种爆炸复合板的可靠性,对比了不同热处理温度条件下铝-钢和铝-钛结合界面性能稳定性与组织演变。采用箱式电阻炉对铝-铝-钢和铝-钛-钢两种复合板进行250~550℃保温1 h的热处理,对热处理后的材料进行剪切性能和拉脱性能测试,并借助SEM和HRTEM等手段对界面反应相进行表征。结果表明,铝-钛-钢复合板具有更加优异的耐热稳定性,在热处理温度的影响下,界面性能损伤量更小,损伤速度更慢。铝-铝-钢在450℃以上出现连续层状金属间化合物,其类型为Fe_(2)Al_(5)和Fe_(4)Al_(13);铝-钛-钢在500℃开始出现不连续的Ti-Al金属间化合物,550℃形成连续层状产物,其类型为TiAl_(3)。相同热处理温度条件下,铝-钢界面反应产物厚度远大于铝-钛界面反应产物厚度。同时,对钢-铝和钛-铝界面反应相形成的热力学和动力学进行了分析,发现钛-铝界面比钢-铝界面的反应驱动力更小,扩散反应速率更慢,这可能是铝-钛界面具有更优异组织与性能稳定性的主要原因。In order to evaluate the reliability of Al-Al-steel and Al-Ti-steel explosive clad plates,the property stability and microstructure evolution of Al-steel and Al-Ti interface were compared under different heat treatment temperature.The Al-Al-steel and Al-Ti-steel clad plates were heat treated at 250-550℃for 1 h in a box resistance furnace.After heat treatment,the shear properties and tensile properties of clad plates were tested.The evolution of the interfacial reaction phases was characterized by SEM and HRTEM.The results show that interface microstructure and property of Al-Ti-steel clad steel has more excellent heat stability.The heat treatment temperature damage to the interface performance is smaller and the damage speed is slower for Al-Ti-steel.The continuous intermetallic compounds appeared in Al-steel interface is above 450℃.The phase types are Fe_(2)Al_(5)and Fe_(4)Al_(13).The Ti-Al intermetallic compounds discontinuously appeared in Al-Ti interface is 500℃and forms a conti-nuous layer product at 550℃,and the type is TiAl_(3).The thickness of the Al-steel interface product is much greater than the thickness of the Al-Ti interface reaction product.Meanwhile,the thermodynamics and kinetics of reaction phase formation in Fe-Al and Ti-Al systems were analyzed.It was found that the interface reaction driving force of Ti-Al system was smaller than that of Fe-Al system,and the diffusion reaction rate was slower,which may be the main reason for the better microstructure and performance stability of Al-Ti interface.

关 键 词：铝-铝-钢复合板 铝-钛-钢复合板 热处理温度 金属间化合物 界面反应 

分 类 号：TG335.85[金属学及工艺—金属压力加工]