The influence of thermomechanical treatment on recrystallization of AlMg4.5Cu0.5 alloy
Апстракт
Recrystallization behavior of an Al-Mg-Cu alloy (4.5 wt. %Mg and 0.45 wt %Cu) subjected to different thermomechanical treatments (TMTs) have been studied by means of light optical microscopy and hardness measurements. In order to provide controlled precipitation of Cu-Mg intermetallic particles two-stage annealing at 565°C/6h + 450°C/4h was applied. Then the tested alloy was cold rolled with 20, 40 and 60% reductions, and finally annealed for 3h at 250, 280 and 350°C, with slow and rapid heating rate (0.6 and 25°C/min). After annealing at 250°C/3h recovered grains were dominated in the structure. New recrystallized grains were revealed only in a few grains when r=40 and 60%. At 280°C a mixture of unrecrystallized and small new recrystallized grains (dav=20μm) was observed while after annealing at 350°C with high reductions a recrystallization process was completed. These observations were in agreement with hardness measurements. The heating rate was found also affecting the homogeneity... of grain size distribution.
Кључне речи:
aluminium alloy / AlMg4.5Cu0.5 / recrystallization / microstructureИзвор:
Metalurgija, 2007, 13, 1, 83-88Издавач:
- Savez inženjera metalurgije Srbije, Beograd
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Radović, Ljubica AU - Nikačević, M. AU - Popović, Miljana AU - Romhanji, Endre PY - 2007 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1042 AB - Recrystallization behavior of an Al-Mg-Cu alloy (4.5 wt. %Mg and 0.45 wt %Cu) subjected to different thermomechanical treatments (TMTs) have been studied by means of light optical microscopy and hardness measurements. In order to provide controlled precipitation of Cu-Mg intermetallic particles two-stage annealing at 565°C/6h + 450°C/4h was applied. Then the tested alloy was cold rolled with 20, 40 and 60% reductions, and finally annealed for 3h at 250, 280 and 350°C, with slow and rapid heating rate (0.6 and 25°C/min). After annealing at 250°C/3h recovered grains were dominated in the structure. New recrystallized grains were revealed only in a few grains when r=40 and 60%. At 280°C a mixture of unrecrystallized and small new recrystallized grains (dav=20μm) was observed while after annealing at 350°C with high reductions a recrystallization process was completed. These observations were in agreement with hardness measurements. The heating rate was found also affecting the homogeneity of grain size distribution. PB - Savez inženjera metalurgije Srbije, Beograd T2 - Metalurgija T1 - The influence of thermomechanical treatment on recrystallization of AlMg4.5Cu0.5 alloy EP - 88 IS - 1 SP - 83 VL - 13 UR - https://hdl.handle.net/21.15107/rcub_technorep_1042 ER -
@article{ author = "Radović, Ljubica and Nikačević, M. and Popović, Miljana and Romhanji, Endre", year = "2007", abstract = "Recrystallization behavior of an Al-Mg-Cu alloy (4.5 wt. %Mg and 0.45 wt %Cu) subjected to different thermomechanical treatments (TMTs) have been studied by means of light optical microscopy and hardness measurements. In order to provide controlled precipitation of Cu-Mg intermetallic particles two-stage annealing at 565°C/6h + 450°C/4h was applied. Then the tested alloy was cold rolled with 20, 40 and 60% reductions, and finally annealed for 3h at 250, 280 and 350°C, with slow and rapid heating rate (0.6 and 25°C/min). After annealing at 250°C/3h recovered grains were dominated in the structure. New recrystallized grains were revealed only in a few grains when r=40 and 60%. At 280°C a mixture of unrecrystallized and small new recrystallized grains (dav=20μm) was observed while after annealing at 350°C with high reductions a recrystallization process was completed. These observations were in agreement with hardness measurements. The heating rate was found also affecting the homogeneity of grain size distribution.", publisher = "Savez inženjera metalurgije Srbije, Beograd", journal = "Metalurgija", title = "The influence of thermomechanical treatment on recrystallization of AlMg4.5Cu0.5 alloy", pages = "88-83", number = "1", volume = "13", url = "https://hdl.handle.net/21.15107/rcub_technorep_1042" }
Radović, L., Nikačević, M., Popović, M.,& Romhanji, E.. (2007). The influence of thermomechanical treatment on recrystallization of AlMg4.5Cu0.5 alloy. in Metalurgija Savez inženjera metalurgije Srbije, Beograd., 13(1), 83-88. https://hdl.handle.net/21.15107/rcub_technorep_1042
Radović L, Nikačević M, Popović M, Romhanji E. The influence of thermomechanical treatment on recrystallization of AlMg4.5Cu0.5 alloy. in Metalurgija. 2007;13(1):83-88. https://hdl.handle.net/21.15107/rcub_technorep_1042 .
Radović, Ljubica, Nikačević, M., Popović, Miljana, Romhanji, Endre, "The influence of thermomechanical treatment on recrystallization of AlMg4.5Cu0.5 alloy" in Metalurgija, 13, no. 1 (2007):83-88, https://hdl.handle.net/21.15107/rcub_technorep_1042 .