Modelling and prediction of mechanical properties for materials with hexagonal symmetry (zinc, titanium and zirconium alloys)

Fundenberger, Jean-Jacques; Philippe, Marie-Jeanne; Wágner, F.; Esling, Claude

doi:10.1016/s1359-6454(97)00099-2

Cited by 184 publications

(102 citation statements)

References 18 publications

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“…Table 2 shows the slip and twinning systems and the relative CRSS values as used by different researchers [33,41,42,44] in predicting the cold worked texture developments in Zr-based alloys. These were broadly classified as four modes, see Table 2, and were used in subsequent texture simulations.…”

Section: Bulk Texture Measurements and Deformation Texture Simulationsmentioning

confidence: 99%

“…The classical Taylor type models of deformation texture developments [1,2,33,34,[39][40][41][42][43][44][45]53] typically considers single-phase systems, notable exception being modeling the so-called texture randomization in two-phase commercial alloys of cubic systems [10]. The usual minority phase in Zr-2.5Nb is the bcc β.…”

Section: Introductionmentioning

confidence: 99%

“…Though the difference in flow stresses of the α and the β phase is less pronounced than in commercial cubic systems, β can be considered as shearable and α as semi-shearable [19,51,52]. The role, if any, of the shearable minority phase (β) on the deformation texture development of the majority phase (α) and if such a role can be 'captured' by Taylor type deformation simulations are not really known [33,[40][41][42][43][44][45][46][47][48][49][50]. The broad objectives of the present study were to identify and understand such issues through characterization of macrotexture and microtexture of deformed Zr-2.5Nb in the single (α) and the twophase (α ϩ β) microstructural states.…”

Section: Introductionmentioning

confidence: 99%

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Explaining absence of texture development in cold rolled two-phase Zr–2.5 wt% Nb alloy

et al. 2003

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In the present study, two distinct starting microstructures of Zr-2.5 wt% Nb have been used: (1) single-phase α hcp martensitic structure; and (2) two-phase, 10% bcc β and rest hcp α, Widmanstätten structure. In the second case, two types of α were present-near grain boundary predominantly single-phase α (about 5% of the total α) and α plates in an apparently continuous β matrix. Both (1) and (2) had similar starting crystallographic texture of the hcp α phase and were deformed by unidirectional and cross rolling. In the two-phase structure the changes in the bulk texture on cold rolling was found to be insignificant, while in the single-phase material noticeable textural changes were observed. Taylor type deformation texture models predicted textural changes in single-phase structure but failed to predict the observed lack of textural development in the two-phase material. Microtexture observations showed that α plates remained approximately single crystalline after cold rolling, while the β matrix underwent significant orientational changes. Relative hardening, estimated by X-ray peak broadening, was observed mainly in β phase; while aspect ratio of α plates remained unchanged with cold rolling-indicating absence of effective macroscopic strain in the hcp α plates. Based on microstructural and microtextural observations, a simple model is proposed in which the plastic flow is mainly confined to the β matrix within which the α plates are subjected to 'in-plane rigid body rotation'. The model explains the observed lack of textural developments in the two-phase structure.

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Section: Bulk Texture Measurements and Deformation Texture Simulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Explaining absence of texture development in cold rolled two-phase Zr–2.5 wt% Nb alloy

et al. 2003

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“…In the present case, the {10 1 1} 3 4 1 3 orientation of the grains following the pyramidal plane is not favorable to plastic deformation [29].…”

Section: Discussionmentioning

confidence: 51%

“…The cooling phase which follows is rapid and thermodynamic equilibrium is not reached which means that the added elements remain in supersaturated solid solution [29]. This zone is considered by many authors to be one of diffusion [25].…”

Section: Discussionmentioning

confidence: 99%

Study of Mechanical Properties of AZ91 Magnesium Alloy Welded by Laser Process Taking into Account the Anisotropy Microhardness and Residual Stresses by X-Ray Diffraction

Kouadri

Barrallier

2010

Metall Mater Trans A

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. ABSTRACTThe objective was to study the mechanical properties of a magnesium alloy welded by a CO 2 laser. Residual stresses were measured by X-ray diffraction. They were calculated by the classic sin 2 Ψ method in the isotropic zones by using the orientation distribution function

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Structural Origin of Reversible Twinning, Non‐Schmid Effect, Incoherent Twin Boundaries and Texture of Hexagonal Close‐Packed Metals

Kadiri

Zhang

et al. 2012

Magnesium Technology 2012

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Modelling and prediction of mechanical properties for materials with hexagonal symmetry (zinc, titanium and zirconium alloys)

Cited by 184 publications

References 18 publications

Explaining absence of texture development in cold rolled two-phase Zr–2.5 wt% Nb alloy

Explaining absence of texture development in cold rolled two-phase Zr–2.5 wt% Nb alloy

Study of Mechanical Properties of AZ91 Magnesium Alloy Welded by Laser Process Taking into Account the Anisotropy Microhardness and Residual Stresses by X-Ray Diffraction

Structural Origin of Reversible Twinning, Non‐Schmid Effect, Incoherent Twin Boundaries and Texture of Hexagonal Close‐Packed Metals

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