Effect of microalloying elements (Nb, V and Ti) on the hot flow behavior of high-Mn austenitic twinning induced plasticity (TWIP) steel
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Data publicació2013
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Abstract
This research work studies the effect of microalloying elements such as Nb, V and Ti on the hot flow
behavior of high-Mn austenitic TWIP steel. For this purpose, isothermal uniaxial hot compression tests
were carried out at three temperatures (900, 1000 and 1100
1
C) and four constant strain rates (10
1
,
10
2
,10
3
and 10
4
s
1
). Experimental results revealed that hot flow curves of microalloyed TWIP
steels show single peak curves for all test conditions. Results are discussed in terms of the peak stress
(
s
p
) and peak strain (
e
p
) and its dependence on the strain rate (
_
e
) and temperature. The addition of
microalloying elements such as Nb, V and Ti in TWIP steels generates a slight increase in the
s
p
value,
and Ti microalloyed TWIP steel exhibits the highest
s
p
value. Hot deformed microstructures were
analyzed by the Electron Back-Scattering Diffraction Technique (EBSD). The most important results of
the austenitic recrystallized grain refinement were obtained for V and Ti microalloyed TWIP steels.
CitacióReyes, F. [et al.]. Effect of microalloying elements (Nb, V and Ti) on the hot flow behavior of high-Mn austenitic twinning induced plasticity (TWIP) steel. "Materials science and engineering A. Structural materials properties microstructure and processing", 2013, vol. 560, p. 552-560.
ISSN0921-5093
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Effect of micro ... Sci Eng A 560 (2013).pdf | Article | 3,190Mb | Accés restringit |