The fractograph and dislocation were observed with SEM and TEM.
利用SEM观察疲劳断口和TEM观察位错形貌。
2
The fractograph and dislocation morphology were observed by means of SEM and TEM.
利用SEM观察疲劳断口和TEM观察位错形貌。
3
The reason of roll fracture has been analyzed by means of chemical composition analysis, macro fractograph, low magnification structure and microstructure examination.