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采用钎料辅助法通过箱式电阻炉制备了碳纤维增强铝基(C_f/Al)复合材料,研究了钎料和压力对C_f/Al复合材料成形的影响,分析了其显微结构及力学性能。结果表明,选取的Al-Si系钎料在压力下可制备出成形质量好,无明显宏观缺陷的C_f/Al复合材料。C_f在复合材料中分布均匀,钎料可填充到C_f间隙中。Al-Si系钎料在压力下制备的C_f/Al复合材料在拉伸过程中,C_f与基体发生剥离,当达到极限载荷后,该复合材料不会立即断裂,而是会有一个延迟的平台,出现延迟断裂的现象。
The carbon fiber reinforced aluminum matrix (C_f / Al) composites were prepared by a brazing aid method through a box resistance furnace. The effects of brazing filler metal and pressure on the forming of C_f / Al composites were investigated. The microstructure and mechanical properties were also analyzed. The results show that the selected Al-Si brazing filler metal can be used to prepare C_f / Al composites with good quality and no obvious macro defects under pressure. C_f is evenly distributed in the composite material and the filler metal can be filled into the C_f gap. Al-Si-based brazing filler C_f / Al composites prepared under pressure in the tensile process, C_f and the substrate peeled off, when the limit load is reached, the composite material will not immediately fracture, but there will be a delay platform , There is the phenomenon of delayed fracture.