The influence of extrusion temperature on the structures and mechanical properties of Mg–Al–4Y alloys
Source abstract
Abstract
Abstract In this study, Mg–Al–4Y alloys were successfully prepared via the melting and casting method. The alloys were then extruded at 450 °C, 500 °C, and 550 °C. The influence of the extrusion temperature on the microstructures and mechanical properties of the alloys was investigated. The results indicated that the Al2Y phase was coarse and agglomerated in the Mg matrix. A strong {0001} basal fiber texture was formed in the alloys extruded at 450 °C; meanwhile, the alloy grains were refined, and the Al2Y phase was distributed uniformly in the matrix; these combined occurrences dramatically enhanced the strength and hardness of the alloys. As the extrusion temperature was increased from 450 °C to 550 °C, the yield strength, tensile strength, and hardness of the alloys gradually decreased, but the elasticity significantly increased. The yield strength reduced from 209.6 MPa to 197.8 MPa, the tensile strength reduced from 311.5 MPa to 271.1 MPa, and the hardness reduced from 77.5 HB to 62.2 HB, while the ductility increased from 2.9% to 15.0%. Based on the experimental results, the high strength and hardness of the alloys were mainly due to fine grain strengthening, second phase strengthening, and {0001} basal fiber texture strengthening.
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Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Latest research advances on magnesium and magnesium alloys worldwide10.1016/j.jma.2020.02.003 ↗
2. Deformation and fracture behaviors of AZ31B Mg alloy at elevated temperature under uniaxial compression10.1016/j.jallcom.2018.12.260 ↗
3. Meng · J. Alloy Compd. · 2019 · 795 · 43610.1016/j.jallcom.2019.04.346 ↗
4. Role of Y on the microstructure, texture and mechanical properties of Mg–Zn–Zr alloys by powder metallurgy10.1016/j.jallcom.2019.151843 ↗
5. Microstructures and mechanical properties of heat-resistant hpdc Mg–4Al-based alloys containing cheap misch metal10.1016/j.msea.2010.12.031 ↗
6. The microstructures and mechanical properties of ultrafine-grained Mg–Zn–Zr alloys fabricated by powder metallurgy10.1088/2053-1591/aaf60f ↗
7. Effect of Ce on microstructure, mechanical properties and corrosion behavior of high-pressure die-cast Mg–4Al-based alloy10.1016/j.jallcom.2010.09.185 ↗
8. Slip behavior and its effect on rolling texture development in a dual-phase Mg–Li alloy10.1016/j.jallcom.2019.152117 ↗
9. Ex-situ EBSD analysis of hot deformation behavior and microstructural evolution of Mg–1Al–6Y alloy via uniaxial compression10.1016/j.msea.2020.138978 ↗
10. Activation and suppression of ⟨c+a⟩ dislocations in a textured Mg–3Al–1Zn alloy10.1016/j.scriptamat.2019.11.057 ↗
11. Effect of microalloying with rare-earth elements on the texture of extruded magnesium-based alloys10.1016/j.scriptamat.2008.06.008 ↗
12. The effect of Y content on microstructure and tensile properties of the as-extruded Mg–1Al–xY alloy10.1016/j.msea.2019.138288 ↗
13. Effect of rolling with different amounts of deformation on microstructure and mechanical properties of the Mg–1Al–4Y alloy10.1016/j.matchar.2020.110149 ↗
14. Strength and tension/compression asymmetry in nanostructured and ultrafine-grain metals10.1016/S1359-6454(03)00286-6 ↗
15. New fabrication method for metallic closed cellular materials containing polymers10.1016/S0261-3069(01)00020-6 ↗
16. Application of severe plastic deformation techniques to magnesium for enhanced hydrogen sorption properties10.3390/met2030329 ↗
17. Effect of stacking fault energy on deformation texture development of nanostructured materials produced by the ARB process10.1016/j.msea.2014.01.048 ↗
18. Superplastic behavior of a fine-grained ZK60 magnesium alloy processed by high-ratio differential speed rolling10.1016/j.msea.2009.08.064 ↗
19. Abnormal twinning behaviors in ZK60 alloy by powder metallurgy process10.1016/j.msea.2020.139145 ↗
20. The effect of nano b-TCP on hot compression deformation behavior and microstructure evolution of the biomedical Mg–Zn–Zr alloy10.1016/j.msea.2018.01.006 ↗
21. Validating a polycrystal model for the elastoplastic response of magnesium alloy AZ31 using in situ neutron diffraction10.1016/j.actamat.2006.06.020 ↗
22. Ex-situ EBSD analysis of yield asymmetry, texture and twinning development in Mg–5Li–3Al–2Zn alloy during tensile and compressive deformation10.1016/j.jallcom.2019.07.099 ↗
23. Zhao · J. Alloys Compd. · 2018 · 747 · 29310.1016/j.jallcom.2018.02.338 ↗
24. On the validity of the hall-petch relationship in nanocrystalline materials10.1016/0036-9748(89)90342-6 ↗
25. Formability of extruded magnesium alloy sheets with different textures10.1002/9781119274803.ch50 ↗
26. In-situ investigation on nucleation and propagation of {10–12} twins during uniaxial multi-pass compression in an extruded AZ31 Mg alloy10.1016/j.msea.2018.06.043 ↗
27. Tensile properties, texture evolutions and deformation anisotropy of as-extruded Mg–6Zn–1Zr magnesium alloy at room and elevated temperatures10.1016/j.msea.2017.05.007 ↗
28. Continuum modeling of the response of a Mg alloy AZ31 rolled sheet during uniaxial deformation10.1016/j.ijplas.2011.05.002 ↗