(南昌航空大学 轻合金加工科学与技术国防重点学科实验室，南昌 330063)
摘 要: 选用浅交弯联、浅交直联、层联结构的M40碳纤维机织物为增强体材料，采用真空气压浸渗法制备纤维体积分数为48%，基体合金为ZL301的2.5D编织M40碳纤维增强铝基复合材料(2.5D-Cf/Al)，研究织物结构对2.5D-Cf/Al 复合材料微观组织与力学性能的影响。结果表明：复合材料的致密度随着织物结构的改变而变化，其中浅交直联结构的2.5D-Cf/Al复合材料的致密度最大为98.5%；织物结构对复合材料的经向拉伸强度有较大影响，浅交直联结构的2.5D-Cf/Al复合材料经向拉伸强度最高，为414.85 MPa，其拉伸断口参差不齐，呈现出适中的界面结合强度；织物结构对复合材料纬向拉伸强度的影响较小，拉伸断口形貌差异不明显。
关键字: 织物结构；2.5D-Cf/Al 复合材料；真空压力浸渗法；微观组织；力学性能
（National Defence Key Discipline Laboratory of Light Alloy Processing Science and Technology, Nanchang Hangkong University, Nanchang 330063, China）
Abstract:The vacuum gas pressure infiltration was used to compose the 2.5D-Cf/Al composites with the volume fraction of 48%, of which the reinforced material was M40 carbon fiber with shallow-bend joint woven, shallow-straight joint woven and layer linking, the matrix alloy was ZL301, to find the effect of woven fabric structure on microstructure and mechanical properties of 2.5D-Cf/Al composites. The results show that the density of 2.5D-Cf/Al composites changes with woven fabric structure, the density of shallow-straight joint woven reaches maximum, 98.5%; the woven fabric structure has great influence on the warp tensile strength of the composites；the warp tensile strength of shallow-straight joint woven reaches maximum, 414.85 MPa, and its tensile fracture surface is uneven and shows moderate interfacial bonding strength; the fabric structure has little influence on the weft tensile strength of the composites, and the difference of tensile fracture surface is not obvious.
Key words: woven fabric structure; 2.5D-Cf/Al composite; vacuum gas pressure infiltration method; microstructure; mechanical property
