(南昌航空大學(xué) 輕合金加工科學(xué)與技術(shù)國防重點(diǎn)學(xué)科實(shí)驗(yàn)室，南昌 330063)
摘 要: 選用淺交彎聯(lián)、淺交直聯(lián)、層聯(lián)結(jié)構(gòu)的M40碳纖維機(jī)織物為增強(qiáng)體材料，采用真空氣壓浸滲法制備纖維體積分?jǐn)?shù)為48%，基體合金為ZL301的2.5D編織M40碳纖維增強(qiáng)鋁基復(fù)合材料(2.5D-Cf/Al)，研究織物結(jié)構(gòu)對(duì)2.5D-Cf/Al 復(fù)合材料微觀組織與力學(xué)性能的影響。結(jié)果表明：復(fù)合材料的致密度隨著織物結(jié)構(gòu)的改變而變化，其中淺交直聯(lián)結(jié)構(gòu)的2.5D-Cf/Al復(fù)合材料的致密度最大為98.5%；織物結(jié)構(gòu)對(duì)復(fù)合材料的經(jīng)向拉伸強(qiáng)度有較大影響，淺交直聯(lián)結(jié)構(gòu)的2.5D-Cf/Al復(fù)合材料經(jīng)向拉伸強(qiáng)度最高，為414.85 MPa，其拉伸斷口參差不齊，呈現(xiàn)出適中的界面結(jié)合強(qiáng)度；織物結(jié)構(gòu)對(duì)復(fù)合材料緯向拉伸強(qiáng)度的影響較小，拉伸斷口形貌差異不明顯。
關(guān)鍵字: 織物結(jié)構(gòu)；2.5D-Cf/Al 復(fù)合材料；真空壓力浸滲法；微觀組織；力學(xué)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
