摘要
为提高以1060Al为中间层的5083Al/1060Al/SUS316爆炸复合板界面结合强度,本文基于固溶度计算,提出了中间层设计准则,选用1060Al+TA1+N6作为中间层制备了5083Al/1060Al/TA1/N6/SUS316爆炸复合板,采用扫描电镜、X射线衍射、万能材料试验机等设备对复合板界面微观组织和拉脱性能进行测试,研究了不同结合界面金属间化合物对复合板力学性能的影响。结果表明:与1060Al中间层相比,1060Al+TA1+N6中间层阻隔了1060Al和SUS316反应,抑制了脆性Al_(3)Fe相生成;同时,中间层1060Al/TA1界面生成了韧性Al Ti和AlTi_(3)相,TA1/N6界面生成了韧性Ti Ni和TiNi_(3)相;5083Al/1060Al/TA1/N6/SUS316爆炸复合板界面拉脱强度为147 MPa,相比5083Al/1060Al/SUS316爆炸复合板界面拉脱强度提高了40%;中间层1060Al/TA1和TA1/N6界面生成的韧性相有助于相邻层界面应变传递,从而促进了拉伸变形过程中应变的均匀分布,进而改变了断裂界面。
In order to improve the interfacial bonding strength of the 5083Al/1060Al/SUS316 explosive composite plate with 1060Al as the intermediate layer,this study proposed a design criterion for the intermediate layer based on solid solubility calculations.The 1060Al+TA1+N6 was selected as the composite intermediate layer to prepare 5083Al/1060Al/TA1/N6/SUS316 explosive composite plate.The interfacial microstructure and pull-through performance of the composite plate were tested by scanning electron microscopy,X-ray diffraction and universal material testing machine.The influence of different intermetallic compounds at the bonding interfaces on the mechanical properties of composite plates was investigated.The results showed that compared with the 1060Al interlayer,the 1060Al+TA1+N6 interlayer blocked the reaction between 1060Al and SUS316,and inhibited the generation of brittle Al_(3)Fe phase.Meanwhile,ductile AlTi and AlTi_(3)phases were formed at the 1060Al/TA1 interface,and ductile TiNi and TiNi_(3)phases were generated at the TA1/N6 interface.The interfacial tensile strength of 5083Al/1060Al/TA1/N6/SUS316 explosive composite plate was 147 MPa,marking a 40%increase compared to that of 5083Al/1060Al/SUS316 explosive composite plate.The ductile phases formed at the interface of the intermediate layer 1060Al/TA1 and TA1/N6 contributed to the strain transfer at the interface of the adjacent layer,thereby improving the uniform distribution of strain during tensile deformation,thereby changing the fracture interface.
作者
张莉莉
王文
韩鹏
强凤鸣
乔柯
李莹
朱磊
ZHANG Lili;WANG Wen;HAN Peng;QIANG Fengming;QIAO Ke;LI Ying;ZHU Lei(School of Metallurgical Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China;Xi'an Tianli Clad Metal Materials Co.,Ltd.,Xi'an 710201,China)
出处
《材料科学与工艺》
北大核心
2025年第6期35-42,共8页
Materials Science and Technology
基金
国家自然科学优秀青年科学基金项目(52222410)
陕西省重点研发计划项目(2023-YBGY-464)
陕西省秦创原“科学家+工程师”队伍项目(2022KXJ-072)。
关键词
爆炸焊接
中间层
应变传递
金属间化合物
拉脱强度
explosive welding
interlayer
strain transfer
intermetallic compound
tensile strength
