Effect of deformation temperature on the microstructure developed in commercial purity aluminum processed by equal channel angular extrusion

Wang, Y.Y.; Sun, P.L.; Kao, P.W.; Chang, C.P.

doi:10.1016/j.scriptamat.2003.11.027

Cited by 63 publications

(14 citation statements)

References 12 publications

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“…[11] When the extrusion temperature was increased, the minimum attainable grain size was found to be increased and the fraction of high misorientation boundaries was found to be lower. [12][13][14] The workability of a billet was reported to be improved significantly by using a low extrusion speed to process titanium and 4340 steel. [11] The extrusion speed was reported [15] to have no influence on the grain size of aluminum and its alloys subjected to ECAE.…”

Section: Introductionmentioning

confidence: 99%

Effects of Processing Parameters on the Grain Refinement of Magnesium Alloy by Equal-Channel Angular Extrusion

Ding

Chang

Kao

2009

Metall Mater Trans A

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The Mg-3 pct Al-1 pct Zn (AZ31) alloy has been used as a model material for understanding the grain-refinement process of a Mg alloy fabricated by equal-channel angular extrusion (ECAE). The effects of ECAE processing parameters on grain refinement have also been studied; it was found that these effects are quite different from those for fcc metals. A multitemperature extrusion procedure has been developed, which can produce an ultrafine-grained AZ31 alloy having a grain size 0.37 lm. For the AZ31 alloy, this ultrafine-grained alloy has a record high strength accompanied by reasonably good tensile ductility. The success of the development of this ECAE procedure proves that ECAE can offer a good opportunity for the development of high-strength Mg alloys.

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Section: Introductionmentioning

confidence: 99%

Effects of Processing Parameters on the Grain Refinement of Magnesium Alloy by Equal-Channel Angular Extrusion

Ding

Chang

Kao

2009

Metall Mater Trans A

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“…And based on the previous studies, such as the investigation on low carbon steels by Shin et al (2002) and the investigation on aluminum by Wang et al (2004), it also ensures the potential for achieving the highest fraction of high-angle boundaries.…”

Section: Resultsmentioning

confidence: 99%

Microstructure evolution of TA15 titanium alloy subjected to equal channel angular pressing and subsequent annealing at various temperatures

Zhao

Guo

Shi

et al. 2011

Journal of Materials Processing Technology

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“…In these simulations, isothermal condition was assumed while in an experiment a temperature rise of 73° was recorded 29 . This temperature rise in the sample may affect the grain size and homogeneous grain refinement 30,31 . Some analytical models are developed to predict the average temperature rise in ECAP 32 .…”

Section: Introductionmentioning

confidence: 99%

An Investigation on the Deformation Heating in Billet and Die During Equal-Channel Angular Pressing and High-Pressure Torsion

Karami

2016

Mat. Res.

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This work aims to investigate the temperature rise in Aluminum alloy 6061 due to deformation heating in equal channel angular pressing (ECAP) and high-pressure torsion (HPT) processes using finite element method. The roles of various parameters are investigated and the heating of ECAP die due to billet deformation is included in the simulations. The results show that while the work-piece moves in the exit channel, the generated heat is transferred to die via conduction and therefore the temperature isosurfaces in die are extended in the direction of inlet and exit channels. The dependency of maximum work-piece temperature to velocity is more than its dependency to friction. Increasing the plunger velocity increases the difference between maximum and minimum temperatures. Additionally, the maximum work-piece temperature is attained at the deformation zone. The temperature rise in HPT is less than ECAP due to the small size of the HPT work-piece compared to ECAP. Not only the work-piece size, but also the good heat conduction of aluminum makes the temperature distribution roughly uniform in HPT.

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Effect of deformation temperature on the microstructure developed in commercial purity aluminum processed by equal channel angular extrusion

Cited by 63 publications

References 12 publications

Effects of Processing Parameters on the Grain Refinement of Magnesium Alloy by Equal-Channel Angular Extrusion

Effects of Processing Parameters on the Grain Refinement of Magnesium Alloy by Equal-Channel Angular Extrusion

Microstructure evolution of TA15 titanium alloy subjected to equal channel angular pressing and subsequent annealing at various temperatures

An Investigation on the Deformation Heating in Billet and Die During Equal-Channel Angular Pressing and High-Pressure Torsion

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