• S-N Curves and fractography in the very-high-cycle fatigue behavior of a pearlitic steel. Effects inclusion size stress ratio on Nanograins formation crack initiation region VHCF. The effects ( R ) (VHCF) steel were experimentally assessed. S – N curve under rotating bending loading exhibited horizontal asymptote shape clear limit. In contrast, ultrasonic axial continuously descending shape, ...

To quantitatively evaluate the three-dimensional lamellar curvature in pearlitic steel, crystallographic orientation rotation of ferrite and cementite was analyzed using scanning electron microscopy backscattering diffraction. In hypereutectoid steel containing 0.92% C, 0.30% Mn, 0.20% Si, 0.19% Cr, ferrite–cementite interfaces some colonies were confirmed to match well with those having freque...