An analysis of the shear zone for metals deformed by equal-channel angular processing

Stoica, G.; Fielden, D.; McDaniels, R.L.; Liu, Y.; Huang, Baiyun; Liaw, Peter K.; Xu, Cheng; Langdon, Terence G.

doi:10.1016/j.msea.2005.08.186

Cited by 38 publications

(26 citation statements)

References 12 publications

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“…Reported by authors (Beyerlein et al, 2004); (Stoica et al, 2005) this low level is characterizing by straining way in deformation zone which is more bending as plastic flowing. Mutual comparison of shearing strain angles obtained from experiment and numerical simulation reference to high conformity of results.…”

Section: Fem Investigationmentioning

confidence: 91%

Effect of Severe Plastic Deformation on the Properties and Structural Developments of high purity Al and Al-Cu-Mg-Zr Aluminium Alloy

Kvačkaj¹,

Bidulská²,

Kočiško³

et al. 2011

Aluminium Alloys, Theory and Applications

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Section: Fem Investigationmentioning

confidence: 91%

Effect of Severe Plastic Deformation on the Properties and Structural Developments of high purity Al and Al-Cu-Mg-Zr Aluminium Alloy

Kvačkaj¹,

Bidulská²,

Kočiško³

et al. 2011

Aluminium Alloys, Theory and Applications

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“…It is reported that in the ECAP method a strong processing zone of SPD deformation (shown by area ABC in the figure) is formed at the corner. 19,20) The region is called plastic-deformation zone (PDZ). The external curve (curve AC) contours so-called ''dead metal'' region at the outer corner, but the effect and size of PDZ is not well known.…”

Section: Sph Analysis Of Ecap Process By Using Grain Refinement Model 21mentioning

confidence: 99%

SPH Analysis of ECAP Process by Using Grain Refinement Model

Saitoh

Ohnishi

2009

Mater. Trans.

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Plastic working of metals using severe plastic deformation (SPD) recently attracts interest of researchers, because it is a method that will improve the toughness as well as the strength just by applying enormously large strain on the material. In this study, deformation, stress and strain of aluminum in ECAP (equal channel angular pressing) are analyzed computationally by using smoothed particle hydrodynamics (SPH) method which is one of particle methods. In addition to elastic-plastic constitutive relation, a newly developed theoretical framework in which grain refinement process is involved is proposed here. We try to implement the framework into the SPH computation. The main idea to conduct grain refinement in the material is that applied energy by plastic working causes continuous change in the total area of grain boundaries and averaged diameter in the material becomes smaller and smaller. The reasonable change can be observed by using such simple but theoretical framework. The present paper is focused on implication, formulation and possibility of the grain refinement model.

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“…The equal-channel angular pressing (ECAP) method, in which severe plastic-deformation is imposed through simple shear, is capable of refining the grain size up to 100-200 nm in many metallic alloys and composites in the form of relatively large bulk billets 2 . As the material deforms, it develops texture due to crystal reorientation, according to the slip systems given by its crystallographic structure.…”

Section: Introductionmentioning

confidence: 99%

Texture analysis in ultrafine grained coppers processed by equal channel angular pressing

Higuera

Cabrera

2013

Mat. Res.

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Electrolytic tough pitch (ETP) and fire refined high conductivity (FRHC) copper samples were severely deformed at room temperature by equal channel angular pressing (ECAP) up to 16 passes (ε ~ 1 per pass), following route Bc. The effect of the initial texture on the evolution of texture after the ECAP process for both materials was analyzed. The annealed materials present a marked anisotropy, with a texture controlled by the <110> fiber. According to the orientation distribution function (ODF), this initial behavior allows the presence of a strong C ({001} <110>) component after the first two ECAP passes in both coppers. However in the second pass the C component significantly increases in the FRHC copper, whereas the ETP copper presents a much more balanced behavior of the A 1 * (111) [ 11 2] and A 2 * (111)[11 2 ] components. The textures obtained for both coppers after each ECAP pass exhibit predominant orientations with continuous distributions along the orientation fiber with simple shear texture.

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An analysis of the shear zone for metals deformed by equal-channel angular processing

Cited by 38 publications

References 12 publications

Effect of Severe Plastic Deformation on the Properties and Structural Developments of high purity Al and Al-Cu-Mg-Zr Aluminium Alloy

Effect of Severe Plastic Deformation on the Properties and Structural Developments of high purity Al and Al-Cu-Mg-Zr Aluminium Alloy

SPH Analysis of ECAP Process by Using Grain Refinement Model

Texture analysis in ultrafine grained coppers processed by equal channel angular pressing

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