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Numerical investigation of austenite grain size distribution in square-diamond pass hot bar rolling

journal contribution
posted on 2007-08-01, 00:00 authored by H W Lee, H C Kwon, Y T Im, Peter HodgsonPeter Hodgson
In this study, the austenite grain size (AGS) for hot bar rolling of AISI4135 steel was predicted based on two different AGS evolution models available in the literature. In order to predict the AGS more accurately, both models were integrated with a three-dimensional non-isothermal finite element program by implementing a modified additivity rule. The predicted results based on two models for the square-diamond (S-D) and round-oval (R-O) pass bar rolling processes were compared with the experimental data available in the literature. Then, numerical predictions depending on various process parameters such as interpass time, temperature, and roll speed were made to compare both models and investigate the effect of these parameters on the AGS distributions. Such numerical results were found to be beneficial to understand the effect of the microstructure evolution model on the rolling processes better and control the processes more accurately.

History

Journal

Journal of materials processing technology

Volume

191

Issue

1-3

Pagination

114 - 118

Publisher

Elsevier SA

Location

Aedermannsdorf, Switzerland

ISSN

0924-0136

eISSN

1873-4774

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2007, Elsevier B.V.