Premium
Effect of hot strip processing during direct charging of thin slabs on the properties of cold strip of LC‐steel
Author(s) -
Bruns Hartmut,
Kaspar Radko
Publication year - 1997
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199700567
Subject(s) - materials science , slab , annealing (glass) , strip steel , cold forming , composite material , metallurgy , hot rolled , deformation (meteorology) , microstructure , continuous casting , structural engineering , engineering
Direct charging of thin slabs of low carbon steel (0.05%C) was investigated by using laboratory tests on a thin‐slab‐casting Simulator linked with the hot deformation Simulator (Wumsi). Starting with a different initial thickness of simulated thin slabs (45 down to 25 mm) the total strain ɛ∑ was varied. Hot deformation schedules (with and without roughing) with different finishing temperatures T F lead to some differences in the hot strip microstructure. Nevertheless, after cold rolling and batch annealing, a rather uniform pancake‐structure and a pronounced {111}‐texture were achieved in the cold strip without any significant relation to the processing routs. The measurement of final mechanical properties proved that a good deep drawability of cold strip can be achieved with direct charging of thin slabs, well comparable to that after a conventional cold charging of thick slabs.