SiC颗粒增强ZL105复合材料的时效  

Aging Characteristics of ZL105 SiC Particulate Composite

作　　者：黄大千[1] 钟桂荣[1] 

机构地区：[1]武汉大学测试中心

出　　处：《电子显微学报》1998年第2期145-149,共5页Journal of Chinese Electron Microscopy Society

摘　　要：用显微硬度测量和透射电镜观察，研究了在ＺＬ１０５铝合金中加入５０ｖｏｌ．％ＳｉＣ颗粒对沉淀和时效硬化的影响。显微硬度测量结果表明，加入增强相使时效动力学过程加快。研究指出，对时效动力学的影响主要来自复合材料的界面。界面产生的高密度位错对加速时效起重要作用。The effect of SiC particulates (50vol.% SiC) on the precipitation and age hardening characteristics of an aluminum matrix composite was studied using microhardness tests and transmission electron microscopy observation. The result of microhardness measurement shows that aging kinetics are accelerated by the presence of SiC paticulates. The study indicates that the influence of aging kinetics of composites is attributed to interface between the reinforcements and the matrix,the high density of dislocations generated on the interface plays an important role in the acceleration of aging.

关 键 词：时效 复合材料 ZL105铝合金 碳化硅 

分 类 号：TB331.03[一般工业技术—材料科学与工程] TQ163.4[化学工程—高温制品工业]