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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
in Cooperation with on an Cooperation-Score of 37%
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
Optimization of thermo-mechanical processing for forging of newly developed creep-resistant magnesium alloy ABAX633
Abstract
The compressive strength and creep resistance of cast Mg-6Al-3Ba-3Ca (ABaX633) alloy has been measured in the temperature range of 25 to 250 ℃, and compared with that of its predecessor ABaX422. The alloy is stronger and more creep-resistant than ABaX422, and exhibits only a small decrease of yield stress with temperature. The higher strength of ABaX633 is attributed to a larger volume fraction of intermetallic particles (Al, Mg)<sub>2</sub>Ca and Mg<sub>21</sub>A<sub>l3</sub>Ba<sub>2</sub> in its microstructure. Hot deformation mechanisms in ABaX633 have been characterized by developing a processing map in the temperature and strain rate ranges of 300 to 500 ℃ and 0.0003 to 10 s<sup>−</sup><sup>1</sup>. The processing map exhibits two workability domains in the temperature and strain rate ranges of: (1) 380 to 475 ℃ and 0.0003 to 0.003 s<sup>−1</sup>, and (2) 480–500 ℃ and 0.003 to 0.5 s<sup>−</sup><sup>1</sup>. The apparent activation energy values estimated in the above two domains (204 and 216 kJ/mol) are higher than that for lattice self-diffusion of Mg, which is attributed to the large back-stress that is caused by the intermetallic particles. Optimum condition for bulk working is 500 ℃ and 0.01 s<sup>−</sup><sup>1</sup> at which hot workability will be maximum. Flow instability is exhibited at lower temperatures and higher strain rates, as well as at higher temperatures and higher strain rates. The predictions of the processing map on the workability domains, as well as the instability regimes are fully validated by the forging of a rib-web (cup) shaped component under optimized conditions.