铜合金在高速变形条件下的破坏机理分析  

Fracture Mechanism of High Speed Deformation of Brass Alloy

作　　者：陆辛[1] 海锦涛[1] 白秉哲[1] 

机构地区：[1]机械工业部北京机电研究所

出　　处：《航空工艺技术》1997年第5期22-23,共2页Aeronautical Manufacturing Technology

摘　　要：通过对高速变形的黄铜进行细观分析,探讨了动载下黄铜的变形和破坏机理;进一步阐述了动载下材料变形及断裂过程是由其内部的微孔洞和微裂纹的演化而造成的,这一过程分为形核、长大及微孔洞聚合。Through microscopic analysis of brass during high speed deformation,the deformation and fracture mechanism of brass under dynamic load are discussed.It is pointed out that material deformation and fracture process un- der dynamic load are caused by the evolution of microvoids and microcrack.This process consists of nucleation,growth and coalescence of microvoids.

关 键 词：高速变形 动载 孔洞 铜合金 破坏机理 细观力学 

分 类 号：TG146.11[一般工业技术—材料科学与工程] TG113.25[金属学及工艺—金属材料]