Journal Published Online: 01 July 2012
Volume 1, Issue 1

Anisotropic Transformation Strain and Its Consequences on Distortion during Austenitization

CODEN: MPCACD

Abstract

The distribution of segregations, which is introduced in the continuous casting process and modified during succeeding manufacturing steps, is considered as an important “distortion potential carrier” for chemically banded steels. This article presents a recently developed mathematical model for integration of the effect of prior forming and cutting operations into heat-treatment simulations by considering “anisotropic transformation strain (ATS).” The model was justified experimentally by simulating the heating and austenitization of dilatometer specimens machined from the forged discs with distinct orientations with respect to the banded microstructure. After the verification, it is used in conjunction with former experimental work to demonstrate that the distribution of fiber flow is one of the important reasons of the dishing of carburized discs. The model provides promising results for process chain simulation to predict the heat-treatment distortion that cannot be predicted with currently available models.

Author Information

Şimşir, Caner
Atilim Univ., Dept. of Manufacturing Engineering, Ankara, TR Stiftung Institut für Werkstofftechnik (IWT), Bremen, DE
Lübben, Thomas
Stiftung Institut für Werkstofftechnik (IWT), Bremen, DE
Hunkel, Martin
Stiftung Institut für Werkstofftechnik (IWT), Bremen, DE
Hoffmann, Franz
Stiftung Institut für Werkstofftechnik (IWT), Bremen, DE
Zoch, Hans-Werner
Stiftung Institut für Werkstofftechnik (IWT), Bremen, DE
Pages: 23
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Details
Stock #: MPC104556
ISSN: 2165-3992
DOI: 10.1520/MPC104556