With electron microscope the fracture surface and metallographic structure analysis is done for typical sample of Q235, Q345 plate of low elongation, its reason found out, some Suggestions proposed.
The microstructure and tensile fracture surface of the Q235 steel has been investigated by TEM and SEM.
While the pressure difference between the inlet of fracture and the outlet of fracture is constant, the transmissibility of fracture surface will decrease with the rising fractal dimension.
Polymerization and fracture surface of DAIP toughed by VE
The fracture surface was inspected by SEM. The results showed that the stamping damage on the surface around the inside bend was the main factor to cause the early fracture.
The fracture surface morphologies of pulled out fiber and matrix cavity were observed by SEM and some analysis of the damage mechanism was de-scribed.
The impact fracture surface showed a tough morphology for POM/NBR/Novolak blends and brittle one for POM/NBR blends.
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