scholarly journals Thermal stability of microstructure, mechanical properties, formability parameters and crystallographic texture in an Al-7075 alloy processed by accumulative roll bonding

2021 ◽  
Vol 11 ◽  
pp. 2208-2220
Author(s):  
Omar Alejandro Velázquez-Carrillo ◽  
Francisco Alfredo García-Pastor
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Crystallographic Texture ◽  
Accumulative Roll Bonding ◽  
Roll Bonding ◽  
Al 7075 ◽  
7075 Alloy ◽  
Thermal Stability Of

Evolution of Texture in ARB Processing of Al 99.8 %

2005 ◽  
Vol 495-497 ◽  
pp. 797-802
Author(s):  
Jan Kuśnierz ◽  
J. Bogucka
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Crystallographic Texture ◽  
Accumulative Roll Bonding ◽  
Orientation Distribution ◽  
Industrial Practice ◽  
Roll Bonding ◽  
Rolled Material

The accumulative roll-bonding (ARB) process, invented a few years ago, is a promising mode for introducing severe plastic deformation into industrial practice. The ARB process consists in rolling of the pack of two sheets up to 50 %. Then, the rolled material is sectioned into two halves, stacked and the procedure of roll-bonding is repeated. The orientation distribution of ARB processed Al 98 % up to e ~ 12 is analyzed in the paper. The evolution of crystallographic texture has been discussed in relation with changes of mechanical properties and structure.

Annealing Response of Al-0.22Sc-0.13Zr Alloy Processed by Accumulative Roll Bonding

2008 ◽  
Vol 584-586 ◽  
pp. 899-904 ◽  
Author(s):  
Petr Homola ◽  
Margarita Slámová ◽  
Vladivoj Očenášek ◽  
J. Uhlíř ◽  
Miroslav Cieslar
Keyword(s):  
Thermal Stability ◽  
Plastic Deformation ◽  
Accumulative Roll Bonding ◽  
Superplastic Forming ◽  
Aged Specimen ◽  
Roll Bonding ◽  
Fine Grained ◽  
Peak Aged ◽  
Pre Treatment ◽  
Thermal Stability Of

Ultra-fine grained (UFG) materials can be produced by several techniques involving severe plastic deformation (SPD). Accumulative Roll Bonding (ARB) is one of the SPD methods that enable the production of large amounts of UFG sheets. UFG sheets were prepared by up to six cycles of ARB at ambient temperature from an Al-0.22Sc-0.13Zr alloy in two states: a non-agehardened and a peak-aged. The effect of Al3(Sc1-xZrx) precipitates on the thermal stability of the UFG structures produced by ARB was investigated by isochronal annealing at temperatures between 200 and 550 °C. Additionally, the non-age-hardened ARB material was peak-aged prior to annealing and annealed together with both as-ARB-processed materials. The changes of microstructure and hardness due to annealing were studied. Annealing at 300 °C induces an additional strengthening in both non-pre-aged ARB materials that may be ascribed to precipitation and growth of coherent Al3(Sc1-xZrx) particles. This result suggests that the hardness decrease introduced by ARB in the peak-aged specimen is due to dissolution of precipitates during deformation. The annealing response of the materials above 300 °C does not depend on their thermal pre-treatment. However, the finely dispersed Al3(Sc1-xZrx) precipitates stabilise the refined deformed microstructure suitable for superplastic forming up to relatively high temperatures.

High strength and thermal stability of bulk Cu/Ta nanolamellar multilayers fabricated by cross accumulative roll bonding

2016 ◽  
Vol 110 ◽  
pp. 341-351 ◽  
Author(s):  
L.F. Zeng ◽  
R. Gao ◽  
Q.F. Fang ◽  
X.P. Wang ◽  
Z.M. Xie ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Accumulative Roll Bonding ◽  
High Strength ◽  
Roll Bonding ◽  
Thermal Stability Of
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