8.8级螺栓用ML40Cr钢的疲劳性能和裂纹扩展行为
王源晨1,宋竹满1,李瑞2,史文博3,朱艳坤1,张广平1(
)
)
Fatigue Properties and Crack Growth Behavior of ML40Cr Steel for 8.8-grade Bolts
WANG Yuanchen1,SONG Zhuman1,LI Rui2,SHI Wenbo3,ZHU Yankun1,ZHANG Guangping1()
)
图4. 光滑和缺口试样的疲劳断口
Fig.4. Fatigue fracture of smooth and notched specimens (a) crack initiation region and (b) propagation region of smooth specimen, (c) crack initiation region and (d) propagation region of notched specimen
