Journal ArticleDOI
A study on the mechanical properties of cryorolled Al–Mg–Si alloy
Reads0
Chats0
TLDR
In this article, the mechanical properties of a precipitation hardenable Al-Mg-Si alloy subjected to cryorolling and ageing treatments are reported in a solid solutionised state.Abstract:
The mechanical properties of a precipitation hardenable Al–Mg–Si alloy subjected to cryorolling and ageing treatments are reported in this present work. The severe strain induced during cryorolling of Al–Mg–Si alloys in the solid solutionised state produces ultrafine microstructures with improved mechanical properties such as strength and hardness. The improved strength and hardness of cryorolled alloys are due to the grain size effect and higher dislocation density. The ageing treatment of cryorolled Al–Mg–Si alloys has improved its strength and ductility significantly due to the precipitation hardening and grain coarsening mechanisms, respectively. The reduction in dimple size of cryorolled Al–Mg–Si alloy upon failure confirms the grain refinement and strain hardening mechanism operating in the severely deformed samples.read more
Citations
More filters
Journal ArticleDOI
Mechanical anisotropy and microstructural changes during cryorolling of Al–Mg–Si alloy
TL;DR: In this article, the influence of rolling temperature on microstructure and mechanical properties was studied on Al-Mg-Si alloy sheets to true strain values of 0.69 and 1.38 at both room temperature and at cryogenic (liquid nitrogen) temperature.
Journal ArticleDOI
Experimental investigations on microstructure and formability of cryorolled AA 5052 sheets
TL;DR: In this paper, the effect of cryorolling on tensile and forming behaviour of aluminium alloy (AA) 5052 sheets has been investigated and compared with room temperature rolling of the same.
Journal ArticleDOI
Microstructure and mechanical properties of cryo-rolled AA6061 Al alloy
TL;DR: The microstructure and mechanical properties of the age hardening AA6061 Al alloy subjected to cryo-rolling (CR) and room temperature rolling (RTR) treatments were investigated as mentioned in this paper.
Journal ArticleDOI
Tensile properties and fracture characteristics of ECAP-processed Al and Al-Cu alloys
Mohamed Ibrahim Abd El Aal,Mohamed Ibrahim Abd El Aal,Nahed El Mahallawy,F. Shehata,Mohamed Abd El Hameed,Eun Yoo Yoon,Jung Hwan Lee,Hyoung Seop Kim +7 more
TL;DR: In this paper, Billets of pure Al and cast-homogenized Al 2 wt.%, 3 wt., and 5 wt% Cu alloys were successfully processed by equal channel angular pressing (ECAP) up to 10 passes without fracture at room temperature using a die with a channel angle of 110°.
Journal ArticleDOI
Hierarchical nanostructures strengthen Al–Mg–Si alloys processed by deformation and aging
TL;DR: In this article, a hierarchical nanostructures achieved by deformation and aging due to concurrent precipitation and defects annihilation can enhance the capacity of the alloy to accommodate dislocations under tension deformation.
References
More filters
Journal ArticleDOI
The Deformation and Ageing of Mild Steel: III Discussion of Results
TL;DR: In this paper, an attempt is made to explain the observed phenomena in the yielding and ageing of mild steel, described in two previous papers, in the general terms of a grain-boundary theory.
Journal ArticleDOI
Bulk nanostructured materials from severe plastic deformation
TL;DR: In this article, the authors present methods of severe plastic deformation and formation of nanostructures, including Torsion straining under high pressure, ECA pressing, and multiple forging.
Journal ArticleDOI
High tensile ductility in a nanostructured metal.
TL;DR: A thermomechanical treatment of Cu is described that results in a bimodal grain size distribution, with micrometre-sized grains embedded inside a matrix of nanocrystalline and ultrafine (<300 nm) grains, which impart high strength, as expected from an extrapolation of the Hall–Petch relationship.
Journal ArticleDOI
Novel ultra-high straining process for bulk materials—development of the accumulative roll-bonding (ARB) process
TL;DR: In this paper, the accumulative roll-bonding (ARB) method was proposed to introduce high plastic strain without any geometrical change if the reduction in thickness is maintained to 50% every rolling pass.
Journal ArticleDOI
Experimental parameters influencing grain refinement and microstructural evolution during high-pressure torsion
Alexander P. Zhilyaev,Alexander P. Zhilyaev,G.V. Nurislamova,B.-K. Kim,Maria Dolors Baró,Jerzy A. Szpunar,Terence G. Langdon +6 more
TL;DR: In this paper, a simple model is proposed to explain the development of a homogeneous microstructure in high pressure torsion (HPT) processing of pure nickel samples, showing that the distributions of grain boundary misorientations are similar in the center and at the periphery of the samples.