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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Prasad, Yellapregada Venkata Rama Krishna
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Topics
Publications (15/15 displayed)
- 2020Thermomechanical Processing of AZ31-3Ca Alloy Prepared by Disintegrated Melt Deposition (DMD)citations
- 2019High Temperature Deformation Behavior and Processing Maps of AZ31 Alloy Deformed in Tension versus Compression
- 2019Texture Evolution and Anisotropy of Plastic Flow in Hot Compression of Extruded ZK60-T5 Magnesium Alloy Plate
- 2018Effect of calcium on the hot working behavior of AZ31-1.5 vol.% nano-alumina composite prepared by disintegrated melt deposition (DMD) processingcitations
- 2018Enhancement of Strength and Hot Workability of AZX312 Magnesium Alloy by Disintegrated Melt Deposition (DMD) Processing in Contrast to Permanent Mold Castingcitations
- 2018Connected Process Design for Hot Working of a Creep-Resistant Mg–4Al–2Ba–2Ca Alloy (ABaX422)citations
- 2018Review on Hot Working Behavior and Strength of Calcium‐Containing Magnesium Alloyscitations
- 2017Optimization of thermo-mechanical processing for forging of newly developed creep-resistant magnesium alloy ABAX633citations
- 2017Mechanism of Dynamic Recrystallization and Evolution of Texture in the Hot Working Domains of the Processing Map for Mg-4Al-2Ba-2Ca Alloycitations
- 2017High temperature strength and hot working technology for As-cast Mg-1Zn-1Ca (ZX11) alloycitations
- 2013High Temperature Deformation and Microstructural Features of TXA321 Magnesium Alloy: Correlations with Processing Mapcitations
- 2012Hot Deformation Mechanisms in AZ31 Magnesium Alloy Extruded at Different Temperaturescitations
- 2009Hot workability, microstructural control and rate-controlling mechanisms in cast-homogenized AZ31 magnesium alloycitations
- 2007Hot deformation mechanisms and microstructural control in high-temperature extruded AZ31 magnesium alloycitations
- 2006Enhancement of workability in AZ31 alloy-processing maps: Part I, cast materialcitations
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article
Mechanism of Dynamic Recrystallization and Evolution of Texture in the Hot Working Domains of the Processing Map for Mg-4Al-2Ba-2Ca Alloy
Abstract
The occurrence of dynamic recrystallization (DRX) and its effect on the evolution of texture during uniaxial compression of a creep-resistant cast Mg-4Al-2Ba-2Ca alloy in the temperature range of 260-500 °C and strain rate range of 0.0003-10 s<sup>-1</sup> has been studied using transmission electron microscopy and electron backscatter diffraction techniques with a view to understand its mechanism. For this purpose, a processing map has been developed for this alloy, which revealed two domains of DRX in the temperature and strain rate ranges of: (1) 300-390 °C/0.0003-0.001 s<sup>-1</sup> and (2) 400-500 °C/0.0003-0.5 s<sup>-1</sup>. In Domain 1, DRX occurs by basal slip and recovery by dislocation climb, as indicated by the presence of planar slip bands and high dislocation density leading to tilt boundary formation and a low-intensity basal texture. On the other hand, DRX in Domain 2 occurs by second order pyramidal slip and recovery by cross-slip since the microstructure revealed tangled dislocation structure with twist boundaries and randomized texture. The high volume content of intermetallic phases Mg<sub>21</sub>Al<sub>3</sub>Ba<sub>2</sub> and (Al,Mg)<sub>2</sub>Ca eutectic phase is considered to be responsible for the observed hot deformation behavior.