It is also called bainitic transformation. The bainitic transformation is a semi diffusion phase transformation. The transformation temperature is in the range of 250~50 ℃. The transformation temperature causes the interstitial carbon energy to disperse for a long distance. Neither iron nor displaced solute elements can significantly expand and reduce. The diffusion process is becoming more and more difficult. The role of alloy elements is to play a role through the influence on the transformation of bainite and the diffusion of carbon atoms.
Fundamental of Material Science -> Structural basis of materials