The vacuum pressure infiltration was used to prepare the laminated puncture structural C

f

/Al composites with the volume fraction of 50%

of which the reinforced material was M40 Jcarbon fiber

and the matrix alloy was ZL301.The microstructure and tensile properties in warp direction of the composites at room temperature and high temperature were investigated

and tensile failure mechanism was analyzed.The results show that at room temperature

350℃and 400℃

the tensile strength in warp direction of the composite is 650.2 MPa

619.8 MPa and 540 MPa

respectively

and the tensile modulus in warp direction is 81.78 GPa

72.76 GPa and 60.82 GPa

respectively.The tensile strength loss rates of laminated puncture structural C

f

/Al composites in warp direction at 350℃and 400℃reach 4.8%and 16.95%

respectively

and the tensile modulus loss rates of laminated puncture structural C

f

/Al composites in warp direction at 350 ℃ and 400 ℃reach 11% and 25.67%

respectively.The tensile mechanical properties of laminated puncture structural C

f

/Al composites in warp direction are decreased significantly at 350℃～400℃than that of ones at room temperature～350 ℃

and its displacementload curve is characterized by nonlinear.The tensile failure of laminated puncture structural C

f

/Al composites in warp direction at high temperature can be divided into four stages

that is integral deformation resistance stage

accumulation stage

fracture failure stage and instability fracture stage.