Severe cold rolling (up to 99.5% reduction) of a Ti+Nb IF steel was found to produce nano-sized to ultrafine grains. The γ fibre intensity increased with the level of cold deformation. The fraction of high angle grain boundaries increased with increasing rolling reduction and then levels off at the highest deformation level. The coincidence site lattice boundary fraction increased continuously with increase in the amount of cold rolling.

Evolution of Microstructure, Texture and Grain Boundary Character in a Severely Cold Rolled Ti+Nb IF Steel. R.Saha, R.K.Ray: Journal of Materials Science, 2008, 43[1], 207-11