摘要
用ＧＹＣ－５０冲击拉伸试验机对粉末冶金钨合金进行不同加载速率的动态拉伸实验，用二次电子法测量动态拉伸试样断口的分形维数，发现分形维数值与动态拉伸断裂能之间有良好的线性关系。
Dynamic tension tests of powder metallurgy(PM)tungsten alloy were carried out on the GYC-50 impact testing machine. The secondary electron method was used to determine the fractal dimension of fracture surface.It was found the fractal dimension correlates well with dynamic tension fracture energy,and the fracture surface energy is 50.5J/m￣2 calculated from the correlation.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
1994年第4期53-57,共5页
Ordnance Material Science and Engineering
关键词
分形维数
钨合金
拉伸断口
fractal dimension,dynamic tension fracture energy,secondary electron method,fracture surface energy
