Simulation of Decomposition Kinetics of Supercooled Austenite in Powder Steel

[摘要] To approve heat treatment of steel modes, quantitative data on austenite decomposition are required. Gaining these data experimentally appears to be extremely complicated. In present work, few approaches to simulate the phase transformation process are proposed considering structure characteristics of powder steels. Results of comparative analysis of these approaches are also given. Predicting the transformation kinetics by simulation is verified for PK40N2M (0.38% C, 2.10% Ni, 0.40% Mo) steel with 3% porosity and PK80 (0.80% C) steel with different porosity using published experimental data.

[发布机构] Tyumen State University, Volodarskogo Av. 6, Tyumen; 625003, Russia^1;Finance Group S.A., Presnenskaya Emb. 12, Moscow; 123100, Russia^2

[效力级别] 电工学

[关键词] Austenite decomposition;Comparative analysis;Decomposition kinetics;Phase transformation process;Quantitative data;Structure characteristic;Supercooled austenite;Transformation kinetics