Microstructure and mechanical properties of Ti/Al/Ti clad plates prepared via powder-in-tube method  

作　　者：Xian-lei Hu Qin-cheng Xie Yi Yuan Ying Zhi 

机构地区：[1]State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,Liaoning,China [2]Suzhou Dongbao Haixing Metal Material Technology Co.,Ltd.,Suzhou 215600,Jiangsu,China [3]School of Material Science and Engineering,Northeastern University,Shenyang 110819,Liaoning,China

出　　处：《Journal of Iron and Steel Research International》2024年第3期670-687,共18页

基　　金：supported by the 1ll Project(B16009);the National Key Research and Development Program of China(2017YFB0304105).

摘　　要：The Ti/Al/Ti clad plates exhibit a broad spectrum of potential applications.However,the conventional techniques of hot-pressing composite and explosive composite are intricate and environmentally hazardous.A novel method was introduced for preparing clad plates,namely,the powder-in-tube method.This method involves a combination of cold rolling,annealing at a temperature of 550℃,and double rolling.The morphology of the intermetallic compound layer was analyzed through the utilization of interface stripping test,tensile test,and microscopic characterization.The interface morphology,interface bonding properties,tensile fracture structures,and properties of plates under the first and second rolling were compared,along with the effects of intermetallic compounds on the interface properties.The results indicate that the powder-in-tube method,when annealed at 550℃,can produce a composite plate featuring a complete and uniform Ti/Al interface.The obtained plate exhibits a peeling strength of 21.5 N/mm,tensile strength of 424 MPa,and elongation of 11.5%.Furthermore,a systematic analysis was conducted to determine the causes of performance degra-dation observed during annealing at temperatures of 600 and 650℃.

关 键 词：Powder-in-tube method-Ti/Al/Ti clad plate Annealing Cold rolling-Mechanical property 

分 类 号：TB33[一般工业技术—材料科学与工程]