退火温度对1060Al/TA2/CCSB爆炸复合板结合界面微观组织与力学性能的影响  

Effect of Annealing Temperature on Microstructure and Mechanical Properties of Bonding Interface of 1060Al/TA2/CCSB Explosive Composite Plate

作　　者：宋慷慨 张聪惠[1,2] 李南南 宋从斌 朱磊 王博 王晓霜[1] 郝轲 Song Kangkai;Zhang Conghui;Li Nannan;Song Congbin;Zhu Lei;Wang Bo;Wang Xiaoshuang;Hao Ke(Xi’an University of Architecture and Technology,Xi’an 710055,China;The International Joint Research Center for Value-added Metallurgy and Processing of Non-ferrous Metals,Xi’an 710055,China;Xi’an Tianli Clad Metal Materials Co.,Ltd,Xi’an 710201,China)

机构地区：[1]西安建筑科技大学,陕西西安710055 [2]有色金属增值冶金与加工国际联合研究中心,陕西西安710055 [3]西安天力金属复合材料股份有限公司,陕西西安710201

出　　处：《稀有金属材料与工程》2023年第9期3097-3105,共9页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51674187);陕西省科技统筹创新工程计划(2019ZDLGY05-03)。

摘　　要：研究了1060Al/TA2/CCSB爆炸复合板结合界面在不同退火温度下的显微组织、力学性能。结果表明,复合板在其界面处呈现连续均匀分布的波状结合,界面处存在漩涡、熔化块、表面微裂纹和绝热剪切带等缺陷。对复合板进行拉脱测试和剪切测试,拉脱断裂发生在1060Al/TA2界面,1060Al/TA2界面的抗剪切强度低于TA2/CCSB界面。复合板波状界面的存在,阻碍了拉伸过程中的颈缩,使复合板的塑性提高。随着退火温度升高到400℃,结合界面发生回复,消除了加工硬化效应,使得界面硬度降低;ASB消失并转变为等轴α晶粒,缺陷减少;界面处的熔化块发生溶解,使复合板结合界面组织结构更加均匀,获得良好的综合性能。The microstructure and mechanical properties of 1060Al/TA2/CCSB explosive composite plate binding interface at different annealing temperatures were studied.The results show that the composite plate exhibits a continuous and uniform distribution of waves at binding interface,and there are defects such as swirls,melting blocks,surface microcracks and adiabatic shear strips(ASB).Cutting test and microhardness testing were conducted on the composite plate,pulling breakage occurs at the 1060Al/TA2 interface,and the shear strength of the 1060Al/TA2 interface is lower than that of the TA2/CCSB interface.The existence of the wavy interface of the composite plate hinders the necklace process during the stretching process,and improves the plasticity of the composite plate.As the annealing temperature rises to 400℃,the binding interface responds and the working hardening effect is eliminated,so that the interface hardness decreases.The ASB disappears and converts into an equal shaft alpha grain,and the defect decreases.The melting block at the interface is dissolved,which makes the structure of the composite plate more uniform and obtain good comprehensive performance.

关 键 词：爆炸复合板 退火 绝热剪切带 显微硬度 力学性能 

分 类 号：TG456.6[金属学及工艺—焊接]