scholarly journals On the effect of plastic anisotropy, strength and work hardening on the tensile ductility of aluminium alloys

2020 ◽  
Vol 188-189 ◽  
pp. 118-132 ◽  
Author(s):  
Bjørn Håkon Frodal ◽  
David Morin ◽  
Tore Børvik ◽  
Odd Sture Hopperstad
Keyword(s):  
Work Hardening ◽  
Aluminium Alloys ◽  
Tensile Ductility ◽  
Plastic Anisotropy ◽  
Anisotropy Strength

The Work Hardening of Single Phase and Multi-Phase Aluminium Alloys

2006 ◽  
Vol 519-521 ◽  
pp. 71-78 ◽  
Author(s):  
J. David Embury ◽  
Warren J. Poole ◽  
David J. Lloyd
Keyword(s):  
Work Hardening ◽  
Aluminium Alloys ◽  
Single Phase ◽  
Dynamic Recovery ◽  
Uniform Elongation ◽  
Strengthening Mechanisms ◽  
Plastic Response ◽  
Spring Back ◽  
Hardening Process ◽  
Multi Phase

The process of work hardening in aluminum alloys is important from the viewpoint of formability and the prediction of the properties of highly deformed products. However the complexity of the strengthening mechanisms in these materials means that one must carefully consider the interaction of dislocations with the detailed elements of the microstructure and the related influence of the elements on dislocation accumulation and dynamic recovery. In addition, it is necessary to consider the influence of the work hardening process at various levels of plastic strain. This permits the possibility of designing microstructure for tailored plastic response, e.g. not simply designed for yield strength but also considering uniform elongation, spring-back, ductility etc. This presentation will explore the concept of identifying the various interactions which govern the evolution of the work hardening and their possible role in alloy design.

scholarly journals Modelling work hardening of aluminium alloys containing dispersoids

2013 ◽  
Vol 93 (23) ◽  
pp. 3142-3153 ◽  
Author(s):  
Qinglong Zhao ◽  
Bjørn Holmedal
Keyword(s):  
Work Hardening ◽  
Aluminium Alloys

scholarly journals A microstructure-based yield stress and work-hardening model for textured 6xxx aluminium alloys

2016 ◽  
Vol 96 (11) ◽  
pp. 1047-1072 ◽  
Author(s):  
M. Khadyko ◽  
O. R. Myhr ◽  
S. Dumoulin ◽  
O. S. Hopperstad
Keyword(s):  
Yield Stress ◽  
Work Hardening ◽  
Aluminium Alloys ◽  
Hardening Model ◽  
Work Hardening Model

Plastic anisotropy of ultrafine grained aluminium alloys produced by accumulative roll bonding

2010 ◽  
Vol 527 (13-14) ◽  
pp. 3271-3278 ◽  
Author(s):  
B. Beausir ◽  
J. Scharnweber ◽  
J. Jaschinski ◽  
H.-G. Brokmeier ◽  
C.-G. Oertel ◽  
...  
Keyword(s):  
Accumulative Roll Bonding ◽  
Aluminium Alloys ◽  
Plastic Anisotropy ◽  
Roll Bonding ◽  
Ultrafine Grained

An analysis of the effect of normal plastic anisotropy on the tensile ductility of sheet tension specimens

1997 ◽  
Vol 36 (1) ◽  
pp. 83-88 ◽  
Author(s):  
P.D. Nicolaou ◽  
S.L. Semiatin
Keyword(s):  
Tensile Ductility ◽  
Plastic Anisotropy

The Application of Multiscale Modelling for the Prediction of Plastic Anisotropy and Deformation Textures

2005 ◽  
Vol 495-497 ◽  
pp. 31-44 ◽  
Author(s):  
Paul van Houtte ◽  
Albert Van Bael ◽  
Marc Seefeldt ◽  
Laurent Delannay
Keyword(s):  
Metal Forming ◽  
Aluminium Alloys ◽  
Dislocation Substructure ◽  
Plastic Anisotropy ◽  
Microscopic Level ◽  
Finite Element Models ◽  
Taylor Model ◽  
Deformation Textures ◽  
Level Model ◽  
Multi Level

The paper focuses on the multi-level character of existing or currently developed models for polycrystal deformation. A general multilevel frame is presented, which can be applied to models for the simulation of plastic anisotropy to be implemented in FE codes for the simulation of metal forming processes, or to models for the simulation of deformation textures. A short overview is presented of two-level models ranging from the full-constraints Taylor model to the crystalplasticity finite element models, including the description of a few recent and efficient models (GIA and ALAMEL). Validation efforts based on experimental cold rolling textures obtained for steel and aluminium alloys are discussed. Finally a recent three-level model which also takes the microscopic level (dislocation substructure) is discussed.

Mechanical Behaviour of an AA6082 Aluminium Alloy at Low Temperatures

2014 ◽  
Vol 794-796 ◽  
pp. 532-537 ◽  
Author(s):  
Ida Westermann ◽  
Odd Sture Hopperstad ◽  
Magnus Langseth
Keyword(s):  
Aluminium Alloy ◽  
Work Hardening ◽  
Aluminium Alloys ◽  
Room Temperature ◽  
Area Reduction ◽  
Work Hardening Rate ◽  
Different Temperatures ◽  
Tensile Data ◽  
Initial Work ◽  
Marine Applications

Aluminium alloys are known to have good cryogenic properties. However, little work is reported on aluminium alloys in the temperature range from room temperature and down to-100°C, which are likely operating temperatures in arctic regions. This work is an experimental study of the low temperature mechanical properties of an extruded AA6082 aluminium alloy in the T6 condition approved for marine applications. Quasi-static and dynamic tensile testing has been carried out at different temperatures from room temperature and down to-70°C. This decrease in temperature leads to a 10 % increase in yield strength. No significant influence of temperature was found on the area reduction to fracture. The work-hardening behaviour has been analysed for different temperatures and strain rates by fitting a generalized Voce rule to the tensile data. The initial work-hardening rate is found to depend weakly on the temperature and strain rate.

A theoretical investigation of the effect of precipitate habit plane on plastic anisotropy in age hardenable aluminium alloys

2018 ◽  
Vol 26 (5) ◽  
pp. 055011 ◽  
Author(s):  
Sumeet Mishra ◽  
Manasij Yadava ◽  
Kaustubh N Kulkarni ◽  
N P Gurao
Keyword(s):  
Habit Plane ◽  
Theoretical Investigation ◽  
Aluminium Alloys ◽  
Plastic Anisotropy
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