As a comparison steel, SCM420 was prepared by spheroidizing annealing.
From these results, the developed steel without spheroidizing annealing has excellent cold forgeability compared with spheroidized SCM420.
By studying the austenization kinetics of the low alloy steel during the spheroidizing
process and the austenization process of martensite in Fe-C-M alloys, it was found that the diffusion of carbon may change through the introduction of alloying elements in steel [8, 9].
This is the way surface diffusion, evaporation and condensation contribute to pore spheroidizing
, increase of contacts between particles that leads to material strengthening.
Kinetice and Optimization of Heat Treatment parameters in CK60 Steel Using Taguchi Robust Design.
annealing, the samples were annealed in nitrogen atmosphere at two different temperatures (580[degrees]C or 650[degrees]C) for different dwell times (2 min, 5 min, 11 min, 26 min and 60 min) and water-quenched into water.
Mechanical property improvement--mechanical properties are improved by spheroidizing
constituent phase particles and by precipitation hardening.
Kinetics and Optimization of Heat Treatment parameters in CK60 Steel Using Taguchi Robust Design.
The nodularizing agent is placed in the chamber and spheroidizing
occurs during the pouring process.
treatment was accomplished with the tundish cover process using Iron-Silicon-Calcium-Magnesium (FeSiCaMg) alloy.