摘要
分析了低合金化铜钼奥贝球铁弯曲疲劳源，其主要分布在试样边缘，由夹杂物和显微孔洞引起．疲劳裂纹扩展符合F-R模型，瞬时断裂区表现为准解理断裂．
It is found that there are sources for the bend fatigue mainly dis-tributed in the edge of specimens and caused by inclusions and micro-voids. Inthe fatigue fracture zone, the regularity of the crack extension is attributed toF-R model. The quasi-cleavage fracture or quasi-fracture occurs in instantaneousrate fracture zones.
出处
《江苏理工大学学报（自然科学版）》
1997年第4期69-73,共5页
Journal of Jiangsu University of Science and Technology(Natural Science)
