Simulation of Decomposition Kinetics of Supercooled Austenite in Powder Steel

Innovations and Prospects of Development of Mining Machinery and Electrical Engineering

矿业工程;电工学

Tsyganova, M.S.^1 ; Ivashko, A.G.^1 ; Polyshuk, I.N.^1 ; Nabatov, R.I.^1 ; Tsyganova, A.I.^2

Tyumen State University, Volodarskogo Av. 6, Tyumen

625003, Russia^1

Finance Group S.A., Presnenskaya Emb. 12, Moscow

123100, Russia^2

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

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/87/9/092029/pdf
DOI  :  10.1088/1755-1315/87/9/092029

来源: IOP

【 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.