An overview of the effect of Nb in strengthening Castrip steel

Authors

Sachin L. Shrestha, The University of Sydney
Chen Zhu, University of Sydney
Gwenaelle Proust, University of Sydney
Frank Barbaro, University of WollongongFollow
Chris Killmore, BlueScope Steel
Kristin R. Carpenter, BlueScope SteelFollow
Harold R. Kaul, Metallurgical Technology, BlueScope Steel
Kelvin Y. Xie, John Hopkins University, USA
Simon P. Ringer, University of Sydney
Julie M. Cairney, University of Sydney

RIS ID

77967

Publication Details

Shrestha, S. L., Zhu, C., Proust, G., Barbaro, F., Killmore, C., Carpenter, K. R., Kaul, H. R., Xie, K. Y., Ringer, S. P. & Cairney, J. M. (2013). An overview of the effect of Nb in strengthening Castrip steel. Materials Science Forum, 753 (March), 559-562.

Abstract

Here we review research in which Vickers hardness tests, optical microscopy, electron backscatter diffraction, and atom proble tomography were used to understand the strengthening effects that can be found with Nb in CASTRIP steels during thermo-mechanical processing and ageing. Nb addition favours the grain refinement of ferrite by inhibiting the austenite recrystallization when hot rolled and provides a strong cluster-hardening effect during ageing.