国产三维五向M55JCf/Al复合材料的显微组织和弯曲性能  

Microstructure and bending properties of domestic three-dimensional five-directional M55J Cf/Al composites

作　　者：金乐 蔡长春 余欢 徐志锋 王振军 李阳 JIN Le;CAI Changchun;YU Huan;XU Zhifeng;WANG Zhenjun;LI Yang(Nation Defense Key Discipline Laboratory of Light Alloy Processing Science and Technology,Nanchang HangKong University,Nanchang 330063,China)

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,南昌330063

出　　处：《航空材料学报》2023年第3期105-115,共11页Journal of Aeronautical Materials

基　　金：国家自然科学基金(52165018);江西省自然科学基金(20202ACBL204010);航空科学基金(2019ZF056013)。

摘　　要：研究国产三维五向M55JCf/Al复合材料的显微组织和致密度以及在室温和350℃下的弯曲性能。结果表明:国产三维五向M55JCf/Al复合材料的致密度为98%,显微组织无明显缺陷,仅存在少量的纤维团聚现象和浸渗微孔缺陷;在室温和350℃的弯曲强度分别为505 MPa和335 MPa,弯曲模量分别为158 GPa和138 GPa,表现出优良的室温、高温弯曲性能。The microstructure,densification and bending properties of domestic three-dimensional five-directional M55JCf/Al composites at room temperature and 350℃were studied.The results show that the density of domestic three-dimensional five-directional M55JCf/Al composites is 98%,and there are no obvious defects in the microstructure,only a small amount of fiber agglomeration and infiltration micropore defects is existed.The bending strength at room temperature and 350℃is 505 MPa and 335MPa respectively,and the bending modulus is 158 GPa and 138 GPa respectively,showing excellent bending properties at room temperature and high temperature.The research results have a certain role in the development of fiber-reinforced aluminum matrix composites.

关 键 词：国产M55J碳纤维 三维五向 CF/AL复合材料 弯曲性能 

分 类 号：TB333[一般工业技术—材料科学与工程]