3/Al層交替排列。采用單向拉伸與氣壓脹形實驗對其高溫單向拉伸變形行為與脹形性能進行了研究。結(jié)果表明，15 min熱壓復合板由于硬脆相TiAl3層較薄，表現(xiàn)出較好的塑性變形能力。復合板高溫變形時，裂紋出現(xiàn)鈍化，阻礙其在TiAl3層中進一步擴展，使得復合板在600 ℃時表現(xiàn)出135%的伸長率和45%的極限脹形率。脹形球殼頂部區(qū)域，Ti層和Al層均發(fā)生較大程度形變，出現(xiàn)頸縮現(xiàn)象，Ti/Al界面呈現(xiàn)波浪狀，TiAl3層破碎成島狀，空隙大部分被Al層填充而未形成裂紋。;Ti/Al micro-laminated composite sheet with alternate arrangement of Ti/TiAl3/Al laminate microstructure was fabricated through vacuum hot-pressing method. The uniaxial tensile deformation behavior at high temperature and the bulging formability were investigated by uniaxial tensile experiment and gas bulging experiment, respectively. The results show that the composite sheet hot pressed for 15 min exhibits better plastic deformation behavior because the hard and brittle TiAl3 layer is thin. When the composite is deformed at elevated temperatures, the cracks of the composite sheet are blunted, which inhibits the propagation of cracks in TiAl3 layer, so the elongation and limiting bulging rate at 600 ℃ reach 135% and 45%, respectively. At the top region of the bulged spherical shell, the Ti layer and Al layer both undergo severe deformation and are necked, the Ti/Al interface is wavy, the TiAl3 layer breaks into islands, with Al layer filling their gaps, and no cracks are formed."/>
3;界面;氣壓脹形;Ti/Al micro-laminated composite sheet;TiAl3;interface;gas bulging"/>