The deformation behavior of nearly fully pearlitic, bainitic and martensitic steels during severe plastic is summarized in this paper. Despite their significantly different yield stresses microstructures, hardening SPD similar. Due to the enormous capacity limited by strength tool materials. microstructure at obtainable limit strain are quite similar, which a nanocrystalline structure order 10 ...

The paper focuses on the analysis of initiation and propagation CO 2 corrosion in several samples low-alloy steel with different microstructures using scanning electrochemical microscopy (SECM) other techniques. It is found that rate mode are highly sensitive to microstructure. overall current density much higher more uniformly distributed for tempered martensite structure than having either a ...

Passing one electric-current pulse through deformed pearlitic steel wires at room temperature causes the formation of cementite particles around 30 nm in size. This is found not only in some particular locations but throughout the cementite area, which reveals a different mechanism from traditional spheroidization of cementite plates because the latter leads to the formation of particles with m...