摘要
采用示波冲击试验及断口形貌分析技术，对液态搅拌铸造ＳｉＣｐ／Ａ３５９ 复合材料的冲击断裂行为进行了研究。结果表明，基体的塑性变形能力、界面结合情况及铸造缺陷都会影响ＳｉＣｐ／Ａ３５９ 复合材料冲击破坏抗力，而基体的塑性变形能力是决定因素。同时，讨论了在ＡＷ和ＡＷ＋ Ｔ６ 状态下ＳｉＣｐ／Ａ３５９
By means of the instrumented impact test and the fracture morphology analytic technique,the impact fracture behavior of SiC particulates reinforced A359 composites (SiC p/A359) fabricated by melt stir casting is studied.The capability of matrix plastic deformation,the binding of interfaces and the casting defects all affect the resistance to impact,and the capability of matrix plastic deformation is the key factor.The facture mechanisms of SiC p/A359 composites under the as-worked (AW)and AW+T6 conditions are also discussed.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
1999年第6期44-48,共5页
Ordnance Material Science and Engineering
基金
中国兵器工业总公司"九五"科研资助
关键词
SIC
复合材料
冲击
断裂行为
PMMCs
铝合金
SiC particulate reinforced aluminum matrix composite,instrumented impact test,fracture behavior
