基于钎料辅助法的C_f/Al复合材料的制备及其力学性能研究  

Preparation and Mechanical Property Research of C_f/Al Composite by Solder Auxiliary Method

作　　者：樊浩[1] 邢丽[1] 徐卫平[1] 朱杜桥 倪圆苹 

机构地区：[1]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,江西南昌330063

出　　处：《热加工工艺》2017年第10期139-142,共4页Hot Working Technology

基　　金：国家自然科学基金项目(51364037);2014江西省研究生创新专项资金项目(YC2014-S385)

摘　　要：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 aluminum matrix composite reinforced with carbon fiber （Cf） was fabricated by solder auxiliary method in box resistance furnace. The influences of solder and pressure on the forming of the composite were studied, and the microstructure and mechanical property of the composite were analyzed. The results show that the composite with good quality and no obvious macroscopic defects can be fabricated by solder auxiliary method with selecting Al-Si system solder under pressure. Cf uniformly distributes in the composite, and the filler metal can be filled in Cf space. In the drawing process of Cp/Al composite prepared under pressure with selecting A1-Si system solder, Cf and the matrix can be peeled. When the load reaches a limit, the composite can not immediately break, and a delayed platform appears ,then, the phenomenon of delayed fracture appears.

关 键 词：碳纤维 CF/AL复合材料 钎料 制备 

分 类 号：TG146.21[一般工业技术—材料科学与工程]