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

2010 ◽  
Vol 527 (13-14) ◽  
pp. 3271-3278 ◽  
Author(s):  
B. Beausir ◽  
J. Scharnweber ◽  
J. Jaschinski ◽  
H.-G. Brokmeier ◽  
C.-G. Oertel ◽  
...  


2005 ◽  
Vol 495-497 ◽  
pp. 31-44 ◽  
Author(s):  
Paul van Houtte ◽  
Albert Van Bael ◽  
Marc Seefeldt ◽  
Laurent Delannay

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.



2020 ◽  
Author(s):  
Jose Rodriguez-Martinez ◽  
Oana Cazacu

This paper presents a theoretical investigation on the inception of plastic localization bands in specimens taken from orthotropic metallic sheets, and subjected to uniaxial tension. For the first time, it is shown that the orientations of the localization bands can be obtained directly from experimental measurements of the uniaxial tensile flow stresses and Lankford coefficients (r-values) of the metallic sheet.



1981 ◽  
Vol 29 (11) ◽  
pp. 1797-1814 ◽  
Author(s):  
P. Bate ◽  
W.T. Roberts ◽  
D.V. Wilson


2020 ◽  
Vol 188-189 ◽  
pp. 118-132 ◽  
Author(s):  
Bjørn Håkon Frodal ◽  
David Morin ◽  
Tore Børvik ◽  
Odd Sture Hopperstad


Author(s):  
Ming Yang ◽  
V.D. Scott

This study is a part of an ongoing research programme aimed at optimising the properties of ceramic fibre reinforced aluminium alloys. It involves a detailed study of matrix and interface and an understanding of the overall mechanical behaviour of the composite. Here, we report an investigation of an Al-7wt%Si alloy reinforced with alumina fibres. A range of techniques including analytical electron microscopy are used to characterise the structure of the fibre matrix interface, the crystallography and morphology of matrix precipitates, and dislocation substructures.It is shown that the eutectic structure of the Al-Si alloy is markedly changed in the presence of fibres, with silicon showing a tendency to segregate on the fibres. Coarse silicon particles are characterised by twins having the twin the {111} silicon habit plane and related by a rotation of 180° about the [110] direction.The particles have a lamellar morphology with the longitudinal axis lying in the {111} habit plane, but show no evidence of any epitaxial relationship with the aluminium lattice.





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