Deakin University
Browse

File(s) under permanent embargo

Influence of specimen geometry of hot torsion test on temperature distribution during reheating treatment of API-X70

journal contribution
posted on 2010-03-01, 00:00 authored by B Mirzakhani, Shahin Khoddam, H Arabi, M T Salehi, S H Seyedein, M R Aboutalebi
The commercial finite element package ANSYS™ was utilized for prediction of temperature distribution during reheating treatment of hot torsion test (HTT) samples with different geometries for API-X70 microalloyed steel. Simulation results show that an inappropriate choice of test specimen geometry and reheating conditions before deformation could lead to non-uniform temperature distribution within the gauge section of specimen. Therefore, assumptions of isothermal experimental conditions and zero temperature gradient within the specimen cross section appear unjustified and led to uncertainties of flow curve obtained. Recommendations on finding proper specimen geometry for reducing temperature gradient along the gauge part of specimen will be given to create homogeneous initial microstructure as much as possible before deformation in order to avoid uncertainty in consequent results of HTT.

History

Journal

Journal of iron and steel research international

Volume

17

Issue

3

Pagination

34 - 39

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

1006-706X

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2010, Central Iron and Steel Research Institute

Usage metrics

    Research Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC