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In this letter, the fracture absorption energies of a carbide-free bainitic steel at different loading rates were investigated using three-point bending test. The results show that the crack initiation, propagation and total absorption energies of U-notched samples of the steel increase significantly with increasing the loading rate. In comparison, for pre-cracked samples, although the crack initiation...
This paper deals with the cyclic deformation behavior and microstructural evolution in a low-carbon carbide-free bainitic steel with two different microstructures. Low-cycle fatigue tests were performed at room temperature at various strain amplitudes under total strain control. The variations of the amount of retained austenite and the substructures versus the number of fatigue cycles were evaluated...
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