Year
1995
Degree Name
Master of Engineering (Hons.)
Department
Department of Materials Engineering
Recommended Citation
Somantri, Amung, Ferrite formation from deformed austenite in Nb-V and Nb-V-Ti microalloyed steels, Master of Engineering (Hons.) thesis, Department of Materials Engineering, University of Wollongong, 1995. https://ro.uow.edu.au/theses/2485
Abstract
A study of the grain coarsening characteristics in C-Mn, Nb-V and Nb-V-Ti steels has shown that the grain coarsening occurs at a low temperature (< 950®C) in the cast C-Mn steel. This seems due to the low solution temperature of the AIN grain boundary pinning particles. However, the grain coarsening temperature ( GCT) can be increased by microalloy additions for Nb-V and Nb-V-Ti steels. Ferrite formation from deformed austenite has been investigated in C-Mn, Nb-V and Nb-V-Ti steels after single pass hot rolling. Rolling reductions were given in the range 20%-60% in temperature range 850°C - 1050°C and the deformed samples were transformed isothermally to ferrite at 680*'C for up to 1800 sec.
Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily represent the views of the University of Wollongong.