Is it true that fine-grained steel has high strength, good plasticity, and toughness?
Reasons for grain refinement: After grain refinement in steel, there is an increase in the number of grain boundaries, which have irregular atomic arrangements, higher impurity and defect concentrations, and higher energy levels. This impedes the movement of dislocations, thus hindering plastic deformation and achieving high strength. Reasons for good plasticity and toughness: The finer […]
Is it true that fine-grained steel has high strength, good plasticity, and toughness? Read More »