@article{Kawulok_P._Influence_2018,
 author={Kawulok, P. and Schindler, I. and Kawulok, R. and Opěla, P. and Sedláček, R.},
 howpublished={online},
 year={2018},
 abstract={<p class="Pa0" style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0pt; margin-left: 0cm; line-height: normal">
 Influence of the initial grain size on hot deformation behavior of the 
 low-alloy Mn-Ti-B steel was investigated. The uniaxial compression tests 
 were performed in range of the deformation temperatures of 900-1200&#176;C 
 and strain rates of 0.1-10 s&#8211;1. One set of samples was heated directly 
 to the deformation temperature, which corresponded to the initial 
 austenitic grain size of 19-56 &#956;m; the other set of samples was 
 uniformly preheated at the temperature of 1200&#176;C. Whereas the values of 
 activation energy, peak stress and steady-state stress values 
 practically did not depend on the initial austenitic grain size, the 
 peak strain values of coarser-grained structure significantly increase 
 mainly at high values of the Zener-Hollomon parameter. This confirms the 
 negative effect of the large size of the initial grain on the dynamic 
 recrystallization kinetics, which can be explained by the reduction in 
 nucleation density.
 </p>},
 type={Artykuły / Articles},
 title={Influence of Heating Parameters on Flow Stress Curves of Low-Alloy Mn-Ti-B Steel},
 volume={vol. 63},
 number={No 4},
 pages={1785-1792},
 journal={Archives of Metallurgy and Materials},
 publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences},
 publisher={Commitee on Metallurgy of Polish Academy of Sciences},
 doi={10.24425/amm.2018.125105},
 keywords={Initial austenition grain size, peak stress, peak strain, Mn-Ti-B steel},
}