Microtextural changes and superplasticity in an Al-7075 alloy processed by high-pressure torsion
Authors: Loucif, A., Huang, Y., Helbert, A.L., Baudin, T., Sabbaghianrad, S. and Langdon, T.G.
Journal: Materials Science Forum
Volume: 838-839
Pages: 445-450
eISSN: 1662-9752
ISBN: 9783038356721
ISSN: 0255-5476
DOI: 10.4028/www.scientific.net/MSF.838-839.445
Abstract:The influence of High-Pressure Torsion (HPT) on texture and superplasticity in an Al- 7075 was studied using X-ray diffraction and tensile testing. The alloy was processed by HPT at room temperature under a pressure of 6.0 GPA up to a maximum of 20 turns. The pole figures were measured at mid-radius of the disks after 1, 5, 10 and 20 turns. The results show the presence of a typical torsion texture during HPT, in particular, the C{001}<110> component was found to develop preferentially. With increasing deformation, the A {111}<110> and the C components are reinforced after 5 turns and the texture tends to be random with the presence of a fibre texture near the center. Moreover, the fraction of C components tends to gradually decrease and a fairly isotropic microtexture is apparent after 20 turns. Tensile testing showed the development of excellent superplastic properties in this alloy with elongations up to ~700% when testing at a temperature of 623 K.
Source: Scopus
Microtextural changes and superplasticity in an Al-7075 alloy processed by high-pressure torsion
Authors: Loucif, A., Huang, Y., Helbert, A.L., Baudin, T., Sabbaghianrad, S. and Langdon, T.G.
Conference: 12th International Conference on Superplasticity in Advanced Materials
Dates: 7-11 September 2015
Journal: Materials Science Forum
Volume: 838-839
Pages: 445-450
eISSN: 1662-9752
ISBN: 9783038356721
ISSN: 0255-5476
DOI: 10.4028/www.scientific.net/MSF.838-839.445
Abstract:© 2016 Trans Tech Publications, Switzerland. The influence of High-Pressure Torsion (HPT) on texture and superplasticity in an Al- 7075 was studied using X-ray diffraction and tensile testing. The alloy was processed by HPT at room temperature under a pressure of 6.0 GPA up to a maximum of 20 turns. The pole figures were measured at mid-radius of the disks after 1, 5, 10 and 20 turns. The results show the presence of a typical torsion texture during HPT, in particular, the C{001}<110> component was found to develop preferentially. With increasing deformation, the A {111}<110> and the C components are reinforced after 5 turns and the texture tends to be random with the presence of a fibre texture near the center. Moreover, the fraction of C components tends to gradually decrease and a fairly isotropic microtexture is apparent after 20 turns. Tensile testing showed the development of excellent superplastic properties in this alloy with elongations up to ~700% when testing at a temperature of 623 K.
Source: Manual
Preferred by: Yi Huang