Achieving strength-ductility synergy in semi-solid squeeze cast 6TiB2/Al–17Si–4Cu composites by heat treatment
Source abstract
Abstract
This study aims to achieve synergistic strength-ductility enhancement of semi-solid squeeze cast 6TiB2/Al–17Si–4Cu composites through in-situ particle strengthening and T6 heat treatment. The microstructure and mechanical properties of 6TiB2/Al–17Si–4Cu composites with different heat treatments were investigated. TiB2 particles are semi-coherent with α-Al and primary Si, respectively. The nanoscale precipitate phases were determined by their crystal orientation relationships. The results showed that they are θ and θʹ phases. Meanwhile, the research results pertaining to the mechanical properties imply that the strength and ductility are enhanced by the TiB2 particles and Al2Cu precipitates. The optimum heat treatment process (solution treatment for 9 h at 520 °C and aging for 8 h at 170 °C) of strengthened 6TiB2/Al–17Si–4Cu composites is revealed in this study, when the ultimate tensile strength and elongation of the composites are 263.3 MPa and 0.51%, respectively. The mechanisms governing the enhanced strength and ductility of 6TiB2/Al–17Si–4Cu composites were discussed.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Aluminum Alloy Microstructure Properties · Advanced Welding Techniques Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Morphological transformation mechanism of eutectic Si phases in Al–Si alloys by nano-AlNp10.1016/j.jallcom.2018.06.223 ↗
2. Cluster-assisted nucleation of silicon phase in hypoeutectic Al–Si alloy with further inoculation10.1016/j.actamat.2014.01.061 ↗
3. Investigate on the phase interfaces and performance evaluation of TiB2p/Al–Si–Cu–Zn (T6) composites10.1016/j.jmrt.2021.03.018 ↗
4. Spray forming of hypereutectic Al–Si alloys10.1016/j.jmatprotec.2009.03.009 ↗
5. The superior elevated-temperature mechanical properties of Al-Cu-Mg-Si composites reinforced with in situ hybrid-sized TiCx-TiB2 particles10.1016/j.msea.2018.05.024 ↗
6. Solute adsorption and entrapment during eutectic Si growth in A–Si-based alloys10.1016/j.actamat.2014.09.040 ↗
7. Formation of Si nanoparticle in Al matrix for Al-7wt.%Si alloy during complex shear flow casting10.1016/j.jallcom.2017.12.243 ↗
8. On the growth mechanism of the primary silicon particle in a hypereutectic Al-20 wt%Si alloy using synchrotron X-ray tomography10.1016/j.matdes.2017.09.062 ↗
9. Enhanced combination of strength and ductility in the semi-solid rheocast hypereutectic Al Si alloy with the effect of in-situ TiB2 particles10.1016/j.matchar.2021.111143 ↗
10. High performance Al/TiB2 composites fabricated by nanoparticle reinforcement and cutting-edge super vacuum assisted die casting process10.1016/j.compositesb.2019.107453 ↗
11. A novel rheological high pressure die-casting process for preparing large thin-walled Al–Si–Fe–Mg–Sr alloy with high heat conductivity, high plasticity and medium strength10.1016/j.msea.2020.139040 ↗
12. High strength and ductility aluminium alloy processed by high pressure die casting10.1016/j.jallcom.2018.09.260 ↗
13. Hardness and corrosion behaviour of anodised Al-Si produced by rheocasting10.1016/j.matdes.2019.107764 ↗
14. Effect of cooling slope and manganese on the microstructure of hypereutectic Al-Si alloy with 2 %Fe10.1590/S1516-14392013005000198 ↗
15. Double-peak age strengthening of cold-worked 2024 aluminum alloy10.1016/j.actamat.2012.11.039 ↗
16. Mechanical properties enhanced by deformation-modified precipitation of θ′-phase approximants in an Al-Cu alloy10.1016/j.msea.2016.08.068 ↗
17. Effect of semi-solid forging on microstructure and mechanical properties of in-situ cast Al-Cu-TiB 2 composites10.1016/j.jallcom.2017.04.113 ↗
18. Laser solid forming additive manufacturing TiB2 reinforced 2024Al composite: microstructure and mechanical properties10.1016/j.msea.2018.12.072 ↗
19. High as-cast strength die-cast AlSi9Cu2Mg alloy prepared by nanoparticle strengthening with industrially acceptable ductility10.1016/j.jallcom.2020.156873 ↗
20. Processing, multiscale microstructure refinement and mechanical property enhancement of hypoeutectic Al–Si alloys via in situ bimodal-sized TiB2 particles10.1016/j.msea.2020.139081 ↗
21. Interface formation and bonding control in high-volume-fraction (TiC+TiB2)/Al composites and their roles in enhancing properties10.1016/j.compositesb.2021.108605 ↗
22. Influence of solution temperature on microstructure and properties of in-situ TiB 2/2009 composites10.1016/j.msea.2015.03.037 ↗
23. Effect of TiB2 particles on aging response of Al–4Cu alloy10.1016/S0921-5093(04)00938-4 ↗
24. Influence of TiB2 particles on aging behavior of in-situ TiB2/Al-4.5Cu composites10.1016/j.msea.2018.02.099 ↗
25. In situ TiB2 reinforced Al-12Si alloy composites by semisolid processing10.4028/www.scientific.net/MSF.675-677.763 ↗
26. Preparation, microstructures and mechanical properties of in-situ TiB2/Al composites by mechanical stirring and subsequent ultrasonic treatment10.1088/2053-1591/ab471f ↗
27. Strengthening precipitates and mechanical performance of Al–Si–Cu–Mg cast alloys containing transition elements10.1016/j.msea.2021.141497 ↗
28. Effect of heat treatment on microstructure and tensile properties of die-cast Al-Cu-Si-Mg alloys10.1016/j.jallcom.2021.160559 ↗
29. An investigation on grain refinement mechanism of TiB2 particulate reinforced AZ91 composites and its effect on mechanical properties10.1016/j.jallcom.2018.11.253 ↗
30. Ageing behaviour of A356 alloy reinforced with in-situ formed TiB2 particles10.1016/j.msea.2008.01.042 ↗
31. Properties and deformation behaviour of Mg–Y2O3 nanocomposites10.1016/j.actamat.2007.05.032 ↗
32. Preparation, microstructures and mechanical properties of in-situ (TiB2 + ZrB2)/AlSi9Cu3 composites10.1016/j.jallcom.2016.02.243 ↗
33. Effects of in-situ synthesized TiB2 on crystallographic orientation, grain size and nanohardness of AA6061 alloy by laser surface alloying10.1016/j.matlet.2019.06.075 ↗
34. Strengthening mechanisms in particulate Al/B4C composites produced by repeated roll bonding process10.1016/j.jallcom.2010.11.004 ↗
35. High modulus Al Si Mg Cu/Mg2Si TiB2 hybrid nanocomposite: microstructural characteristics and micromechanics-based analysis10.1016/j.jallcom.2016.10.016 ↗
36. Consideration of Orowan strengthening effect in particulate-reinforced metal matrix nanocomposites: a model for predicting their yield strength10.1016/j.scriptamat.2005.12.017 ↗
37. Mechanical behavior and strengthening mechanisms in ultrafine grain precipitation-strengthened aluminum alloy10.1016/j.actamat.2013.09.042 ↗