一种含复合夹杂物的贝马复相钢疲劳开裂机制
谢贞俊, 朱艳坤, 赵振凯, 陆彦地, 周相海, 曹明, 张鹏, 张哲峰

Mechanism of Fatigue Crack Initiation Induced by Complex Inclusions in Bainite-Martensite Dual-phase Steel
XIE Zhenjun, ZHU Yankun, ZHAO Zhenkai, LU Yandi, ZHOU Xianghai, CAO Ming, ZHANG Peng, ZHANG Zhefeng
图8 内部夹杂诱导裂纹萌生样品断口的SEM图像(σa = 580 MPa, Nf = 2924716)
Fig.8 SEM micrographs of the fracture surface showing internal inclusion-induced crack initiation (σa = 580 MPa, Nf = 2924716) (a) macroscopic fracture morphology, (b) morphology of the inclusion at the crack initiation site, (c) EDS analysis result of the inclusion