The effects of post annealing on the mechanical properties, microstructure and texture evolutions of pure copper deformed by twist extrusion process

Mousavi, S.A.A. Akbari; Bahadori, Sh. Ranjbar

doi:10.1016/j.msea.2010.10.007

Cited by 19 publications

(1 citation statement)

References 23 publications

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“…The effect of multiple passes on the strain suffered by a material was already studied. 17,18 M. Iqbal et al 19 established grain refinement in the AA 7075-T6 aluminum alloy and its mechanical properties showed an improvement due to TE involving multiple passes. S. R. Bahadori et al 7 examined the grain size and micro-hardness variations in pure aluminum using different SPD techniques of equal-channel angular pressing (ECAP) and TE with cold rolling (CR) as the post process.…”

Section: Introductionmentioning

confidence: 99%

Effects of prior annealing on the mechanical properties of a twist-extruded AA 7075 aluminum alloy

Sakthivel¹,

Kumar²,

Iqbal³

2020

Mater. Tehnol.

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This paper discusses the mechanical properties and grain refinement of an AA 7075 aluminum alloy twist-extruded at the cold-working temperature, and variations in the properties caused by prior annealing and as a function of the mechanical properties. Post-processing properties at room temperature, namely, the tensile strength, micro-hardness and microstructure were determined. An increase in the micro-hardness and tensile strength after three passes of twist extrusion (TE) was seen when compared with the starting annealed state. When prior annealing was done at 300°C, the increase in the micro-hardness was 37 % and the increase in the tensile strength was 5 %. The corresponding figures for prior annealing at 400°C were 34 % and 4 %, respectively, while for the 500°C prior annealing, the figures were 31 % and 3 %, respectively. However, the rate of increase in the micro-hardness and tensile strength of a sample in the annealed state was higher at 300°C than at 400°C or 500°C. In addition, a very fine structure of the AA 7075 aluminum alloy developed during the three TE passes as observed with a scanning electron microscope.

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Section: Introductionmentioning

confidence: 99%

Effects of prior annealing on the mechanical properties of a twist-extruded AA 7075 aluminum alloy

Sakthivel¹,

Kumar²,

Iqbal³

2020

Mater. Tehnol.

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Twist Extrusion as a Potent Tool for Obtaining Advanced Engineering Materials: A Review

et al. 2017

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Twist extrusion (TE) is one of the most popular techniques of severe plastic deformation, aiming at imparting to a material a tailored microstructure and the associated property improvement. The article provides a survey of the literature on the mechanics of TE and the effect it has on the structure, texture, and the attendant properties of various materials, including metals and alloys, powder materials, and polymers. Special emphasis is placed on vortex flow during TE and its hitherto unexplored potential for producing micro-and macrostructures that promise superior properties of the materials. In particular, the possibility of creating novel hybrid materials with chiral inner architecture is demonstrated. The survey is concluded by a presentation of examples of practical applications of TE.

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Cross Flow During Twist Extrusion: Theory, Experiment, and Application

Kulagin

Latypov

Kim

et al. 2013

Metall Mater Trans A

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The effects of post annealing on the mechanical properties, microstructure and texture evolutions of pure copper deformed by twist extrusion process

Cited by 19 publications

References 23 publications

Effects of prior annealing on the mechanical properties of a twist-extruded AA 7075 aluminum alloy

Effects of prior annealing on the mechanical properties of a twist-extruded AA 7075 aluminum alloy

Twist Extrusion as a Potent Tool for Obtaining Advanced Engineering Materials: A Review

Cross Flow During Twist Extrusion: Theory, Experiment, and Application

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