摘要
本文研究了碳化硅颗粒增强镁基复合材料的损伤性能 ,并与铝基复合材料的损伤性能进行对比。结果表明 ,碳化硅颗粒增强镁基复合材料损伤曲线分为三个阶段 ,初始损伤阶段 (高速率线性阶段 ) ;损伤延迟阶段 (低速率平缓阶段 ) ;损伤加速阶段。与纯铝基复合材料和 70 75铝基复合材料相比 ,碳化硅颗粒增强镁基复合材料损伤曲线的损伤延迟阶段非常平直 ,因此抗损伤性能优于铝基复合材料。对颗粒增强复合材料来说 ,强结合界面对提高材料损伤抗力的作用要优于弱结合界面。
Resisting damage of SiC p reinforced magnesium matrix composites was studied The results show that D- ε p curve of fabricate SiC p reinforced Magnesium matrix composites can be divided into three stages,initial stage,lagging stage and boost stage By comparing with aluminium matrix composites and 7075 aluminium matrix composites,it has been found that D- ε p curve of fabricate SiC p reinforced magnesium matrix composites' lagging stage is very flat Therefore its resisting damage is higher than that of aluminium matrix composites And for abricate reinforced composite,intensive bonding interface is better than weak bonding interface in increasing composite effect of resisting damage
出处
《金属功能材料》
CAS
2002年第2期33-35,共3页
Metallic Functional Materials
