A mechanism of high-temperature plasticity has been studied in terms of stress exponent and activation energy for deformation. A Ti3Al-based intermetallic was processed by hot-rolling in the two-phase field to accomplish a fine-grained microstructure. Compression stress-strain tests were conducted in the temperature interval rangin from 900 to 1050 degrees C and strain rates between 6.9 . 10(-5) and 2.7 . 10(-2) s(-1). Results indicate that viscous-drag dislocation glide and grain boundary sliding are the main mechanisms of deformation. Activation energy for deformation suggests dependency on the solute content in the beta-phase.
Keywords:
Ti3Al intermetallic / Deformation / Stress exponent / Activation energy
Source:
International Journal of Materials Research, 2011, 102, 4, 452-456
TY - JOUR
AU - Tadić, Srđan
AU - Jančić-Heinemann, Radmila
AU - Čolić, Katarina
AU - Sedmak, Aleksandar
PY - 2011
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1961
AB - A mechanism of high-temperature plasticity has been studied in terms of stress exponent and activation energy for deformation. A Ti3Al-based intermetallic was processed by hot-rolling in the two-phase field to accomplish a fine-grained microstructure. Compression stress-strain tests were conducted in the temperature interval rangin from 900 to 1050 degrees C and strain rates between 6.9 . 10(-5) and 2.7 . 10(-2) s(-1). Results indicate that viscous-drag dislocation glide and grain boundary sliding are the main mechanisms of deformation. Activation energy for deformation suggests dependency on the solute content in the beta-phase.
PB - Carl Hanser Verlag, Munich
T2 - International Journal of Materials Research
T1 - High-temperature deformation behaviour of Ti3Al-11Nb intermetallic
EP - 456
IS - 4
SP - 452
VL - 102
DO - 10.3139/146.110500
ER -
@article{
author = "Tadić, Srđan and Jančić-Heinemann, Radmila and Čolić, Katarina and Sedmak, Aleksandar",
year = "2011",
url = "http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1961",
abstract = "A mechanism of high-temperature plasticity has been studied in terms of stress exponent and activation energy for deformation. A Ti3Al-based intermetallic was processed by hot-rolling in the two-phase field to accomplish a fine-grained microstructure. Compression stress-strain tests were conducted in the temperature interval rangin from 900 to 1050 degrees C and strain rates between 6.9 . 10(-5) and 2.7 . 10(-2) s(-1). Results indicate that viscous-drag dislocation glide and grain boundary sliding are the main mechanisms of deformation. Activation energy for deformation suggests dependency on the solute content in the beta-phase.",
publisher = "Carl Hanser Verlag, Munich",
journal = "International Journal of Materials Research",
title = "High-temperature deformation behaviour of Ti3Al-11Nb intermetallic",
pages = "456-452",
number = "4",
volume = "102",
doi = "10.3139/146.110500"
}
Tadić, S., Jančić-Heinemann, R., Čolić, K.,& Sedmak, A. (2011). High-temperature deformation behaviour of Ti3Al-11Nb intermetallic.
International Journal of Materials Research
Carl Hanser Verlag, Munich., 102(4), 452-456.
https://doi.org/10.3139/146.110500
Tadić S, Jančić-Heinemann R, Čolić K, Sedmak A. High-temperature deformation behaviour of Ti3Al-11Nb intermetallic. International Journal of Materials Research. 2011;102(4):452-456
Tadić Srđan, Jančić-Heinemann Radmila, Čolić Katarina, Sedmak Aleksandar, "High-temperature deformation behaviour of Ti3Al-11Nb intermetallic" International Journal of Materials Research, 102, no. 4 (2011):452-456,
https://doi.org/10.3139/146.110500 .
