Deformation mechanisms in ti3al-nb alloy at elevated temperatures
2010
Authors
Tadić, SrđanProkić-Cvetković, Radica
Balać, Igor
Jančić-Heinemann, Radmila
Bojić, Katarina
Sedmak, Aleksandar
Article (Published version)
Metadata
Show full item recordAbstract
Ti3Al-11Nb-1V (x/%) was made in a vacuum arc furnace. Hot-rolling was conducted at 1050 degrees C in a two-phase field of the alloy. Strain-rate jump tests were performed at T = 800-1100 degrees C and strain rates of 10(-6) to 10(-3) s(-1). Creep stress exponent (n) and activation energy for deformation (Q) were used to identify deformation mechanisms. Two sequential mechanisms are revealed: (i) viscous glide, typical of solid solution alloys and, (ii) power law breakdown at lower temperatures. Activation energy for deformation was found to be strongly stress-dependant.
Keywords:
Titanium intermetallics / deformation / viscous glide / power law breakdownSource:
Materiali in Tehnologije, 2010, 44, 6, 357-361Publisher:
- Institute of Metals and Technology
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Tadić, Srđan AU - Prokić-Cvetković, Radica AU - Balać, Igor AU - Jančić-Heinemann, Radmila AU - Bojić, Katarina AU - Sedmak, Aleksandar PY - 2010 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1533 AB - Ti3Al-11Nb-1V (x/%) was made in a vacuum arc furnace. Hot-rolling was conducted at 1050 degrees C in a two-phase field of the alloy. Strain-rate jump tests were performed at T = 800-1100 degrees C and strain rates of 10(-6) to 10(-3) s(-1). Creep stress exponent (n) and activation energy for deformation (Q) were used to identify deformation mechanisms. Two sequential mechanisms are revealed: (i) viscous glide, typical of solid solution alloys and, (ii) power law breakdown at lower temperatures. Activation energy for deformation was found to be strongly stress-dependant. PB - Institute of Metals and Technology T2 - Materiali in Tehnologije T1 - Deformation mechanisms in ti3al-nb alloy at elevated temperatures EP - 361 IS - 6 SP - 357 VL - 44 UR - https://hdl.handle.net/21.15107/rcub_technorep_1533 ER -
@article{ author = "Tadić, Srđan and Prokić-Cvetković, Radica and Balać, Igor and Jančić-Heinemann, Radmila and Bojić, Katarina and Sedmak, Aleksandar", year = "2010", abstract = "Ti3Al-11Nb-1V (x/%) was made in a vacuum arc furnace. Hot-rolling was conducted at 1050 degrees C in a two-phase field of the alloy. Strain-rate jump tests were performed at T = 800-1100 degrees C and strain rates of 10(-6) to 10(-3) s(-1). Creep stress exponent (n) and activation energy for deformation (Q) were used to identify deformation mechanisms. Two sequential mechanisms are revealed: (i) viscous glide, typical of solid solution alloys and, (ii) power law breakdown at lower temperatures. Activation energy for deformation was found to be strongly stress-dependant.", publisher = "Institute of Metals and Technology", journal = "Materiali in Tehnologije", title = "Deformation mechanisms in ti3al-nb alloy at elevated temperatures", pages = "361-357", number = "6", volume = "44", url = "https://hdl.handle.net/21.15107/rcub_technorep_1533" }
Tadić, S., Prokić-Cvetković, R., Balać, I., Jančić-Heinemann, R., Bojić, K.,& Sedmak, A.. (2010). Deformation mechanisms in ti3al-nb alloy at elevated temperatures. in Materiali in Tehnologije Institute of Metals and Technology., 44(6), 357-361. https://hdl.handle.net/21.15107/rcub_technorep_1533
Tadić S, Prokić-Cvetković R, Balać I, Jančić-Heinemann R, Bojić K, Sedmak A. Deformation mechanisms in ti3al-nb alloy at elevated temperatures. in Materiali in Tehnologije. 2010;44(6):357-361. https://hdl.handle.net/21.15107/rcub_technorep_1533 .
Tadić, Srđan, Prokić-Cvetković, Radica, Balać, Igor, Jančić-Heinemann, Radmila, Bojić, Katarina, Sedmak, Aleksandar, "Deformation mechanisms in ti3al-nb alloy at elevated temperatures" in Materiali in Tehnologije, 44, no. 6 (2010):357-361, https://hdl.handle.net/21.15107/rcub_technorep_1533 .