压下量对钛/钢双层直接热轧复合板结合强度的影响  

Effect of Reduction on Bonding Strength of Ti/Steel Bilayer Clad Plateby Direct Hot Rolling

作　　者：梁经韬 边丽萍[1,2,3] 韩绍杰 朱金森 王涛 梁伟[1,3] LIANG Jingtao;BIAN Liping;HAN Shaojie;ZHU Jinsen;WANG Tao;LIANG Wei(School of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment,Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,China;Shanxi Key Laboratory of Advanced Magnesium Based Materials,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学材料科学与工程学院,山西太原030024 [2]太原理工大学先进金属复合材料成形技术与装备教部工程研究中心,山西太原030024 [3]太原理工大学先进镁基材料山西省重点实验室,山西太原030024

出　　处：《热加工工艺》2025年第5期101-104,共4页Hot Working Technology

基　　金：国家重点研发计划项目(2018YFA0707304);国家自然科学基金项目(51905372)。

摘　　要：采用非真空直接热轧法在不同轧制压下量(30%~45%)下对TA1纯钛/304不锈钢双层复合板进行一道次热轧复合,考察压下量对复合板界面结合强度、组元板变形率、界面微观组织的影响。结果表明,随压下量的增加,复合板所受正应力和界面剪切应力显著增加,界面接触面积加大、元素扩散加剧、TA1层晶粒显著细化,界面结合强度显著增加。当压下量为40%时,复合板界面结合强度显著增加,304与TA1的变形率比达到最高值75%,变形协调性最好;45%压下量时界面剪切强度最高,达237 MPa。Pure titanium TA1/304 stainless steel double-layer clad plate was combined by one pass non-vacuum direct hot rolling method under different rolling reduction of 30%-45%.The effects of the reduction on the interfacial bonding strength,deformation ratio of component plates and interface microstructure of the clad plate were investigated.The results show that the normal stress and interfacial shear stress of the composite plate increase significantly with the increase of the reduction ratio,the interfacial contact area and interfacial element diffusion increase and the grains of TA1 layer are refined significantly,and thus the interfacial bonding strength is enhanced significantly.When the reduction is 40%,the interfacial bonding strength of the clad plate increases significantly,the deformation ratio of 304 to TA1 reaches the highest value of 75%,and the deformation compatibility is best.When the reduction is 45%,the interfacial shear strength is highest,up to 237 MPa.

关 键 词：钛/钢复合板 轧制压下量 结合强度 微观组织 

分 类 号：TG335.8[金属学及工艺—金属压力加工]