Microstructural evolution, strengthening and toughening mechanisms of AZ80 composite sheet reinforced by TiB2 with fiber-like distribution
Source abstract
Abstract
Abstract In-situ TiB2/AZ80 composite was prepared by a simple casting method, and then hot-rolling. Effects of TiB2 reinforcements on the microstructural evolution of composite were investigated. In-situ TiB2 particles could refine the as-cast grains of AZ80 alloy, and promote recrystallization through particle stimulated nucleation (PSN) effect. Due to the grain refinement and the PSN effect of TiB2, the twin induced recrystallization mode in AZ80 alloy is transformed into grain boundary and particle dominated recrystallization process in the TiB2/AZ80 composite, which suppresses the generation of coarse shear bands during rolling and improves the rolling ability. At the same time, the morphology of TiB2 particle clusters was continuously modified with the increase of rolling passes, and finally formed fiber-like distribution characteristics. Fine grain strengthening and thermal mismatch strengthening are the main strengthening mechanisms of the composite sheet. Internal toughening mechanisms are texture weakening, the proliferation of more dislocations, higher Schmidt factor and more uniform strain distribution induced by the PSN effect. In addition, external toughening ones should attribute to bending and deflection of cracks resulting from fiber-like particle distribution characteristics. Thus, the strength and toughness of the TiB2/AZ80 composite were simultaneously enhanced.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Magnesium Alloys: Properties and Applications · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
Show source-provided references
1. Recent developments in rare-earth free wrought magnesium alloys having high strength: a review10.1016/j.jallcom.2015.12.057 ↗
2. Review of recent studies in magnesium matrix composites10.1023/B:JMSC.0000043583.47148.31 ↗
3. Particle-reinforced metal matrix nanocomposites fabricated by selective laser melting: a state of the art review10.1016/j.pmatsci.2019.04.006 ↗
4. Strengthening and toughening mechanisms of Mg matrix composites reinforced with specific spatial arrangement of in-situ TiB2 nanoparticles10.1016/j.compositesb.2020.108174 ↗
5. Development of titanium particulate reinforced AZ31 magnesium matrix composites via friction stir processing10.1016/j.jallcom.2019.153071 ↗
6. Study on effect of TiB2 reinforcement on the microstructural and mechanical properties of magnesium RZ5 alloy based metal matrix composites10.1016/j.jma.2020.04.003 ↗
7. Effect of in-situ Al2Y particles on the as-cast/as-rolled microstructure and mechanical properties of AZ31 alloy10.1016/j.msea.2017.04.114 ↗
8. The conflicts between strength and toughness10.1038/nmat3115 ↗
9. Effects of particle distribution on microstructural evolution and mechanical properties of TiB2/AZ31 composite sheets10.1016/j.msea.2016.12.072 ↗
10. Super-formable pure magnesium at room temperature10.1038/s41467-017-01330-9 ↗
11. Microstructural modification and strength enhancement by SiC nanoparticles in AZ31 magnesium alloy during hot rolling10.1016/j.msea.2017.12.075 ↗
12. Magnesium matrix composite reinforced by nanoparticles – a review10.1016/j.jma.2020.08.018 ↗
13. Balancing the strength and ductility of graphene oxide-carbon nanotube hybrid reinforced aluminum matrix composites with bimodal grain distribution10.1016/j.msea.2020.140067 ↗
14. Enhanced mechanical properties of graphene (reduced graphene oxide)/aluminum composites with a bioinspired nanolaminated structure10.1021/acs.nanolett.5b03492 ↗
15. Toughening of aluminum matrix nanocomposites via spatial arrays of boron carbide spherical nanoparticles10.1016/j.actamat.2015.09.057 ↗
16. Effects of β-Mg17Al12 morphology on microstructure and mechanical properties of as-rolled AZ80 alloy
17. Twin recrystallization mechanisms and exceptional contribution to texture evolution during annealing in a magnesium alloy10.1016/j.actamat.2016.12.058 ↗
18. Influence of strain rate and temperature on the structure. Property behavior of high-purity titanium
19. Particle effects on recrystallization in magnesium–manganese alloys: particle-stimulated nucleation10.1016/j.actamat.2009.02.032 ↗
20. Effect of pass reduction on distribution of shear bands and mechanical properties of AZ31B alloy sheets prepared by on-line heating rolling10.1016/j.jmatprotec.2020.116611 ↗
21. Individual effect of recrystallisation nucleation sites on texture weakening in a magnesium alloy: part 1 - double twins10.1016/j.actamat.2017.06.015 ↗
22. Synthesis, characterization and mechanical properties of in-situ (TiC-TiB2) reinforced magnesium matrix composite10.1016/j.matdes.2016.07.024 ↗
23. Transition of dominant deformation mode in bulk polycrystalline pure Mg by ultra-grain refinement down to sub-micrometer10.1016/j.actamat.2020.07.055 ↗
24. Microstructure and strengthening mechanism of bimodal size particle reinforced magnesium matrix composite10.1016/j.compositesa.2012.03.007 ↗
25. Achieving ultra-high strengthening and toughening efficiency in carbon nanotubes/magnesium composites via constructing micro-nano layered structure10.1016/j.compositesa.2019.02.006 ↗
26. Microstructural evolution and strengthening behavior in in-situ magnesium matrix composites fabricated by solidification processing10.1016/j.matchemphys.2017.03.025 ↗
27. Hall-Petch relationship in Mg alloys: a review10.1016/j.jmst.2017.07.022 ↗
28. Microstructures and properties of graphene-nanoplatelet-reinforced magnesium-matrix composites fabricated by an in situ reaction process10.1016/j.jallcom.2020.155125 ↗
29. Dislocation generation due to differences between the coefficients of thermal expansion10.1016/0025-5416(86)90261-2 ↗
30. Use of high energy ball milling to study the role of graphene nanoplatelets and carbon nanotubes reinforced magnesium alloy10.1016/j.jallcom.2015.06.051 ↗
31. Microstructure and mechanical properties of AZ91 alloy reinforced by carbon nanotubes coated with MgO10.1016/j.carbon.2015.10.018 ↗
32. Strengthening methods in crystals
33. Consideration of Orowan strengthening effect in particulate-reinforced metal matrix nanocomposites: a model for predicting their yield strength10.1016/j.scriptamat.2005.12.017 ↗
34. Mechanical behavior of ultrafine-grained Al composites reinforced with B4C nanoparticles10.1016/j.scriptamat.2011.06.037 ↗
35. Effect of Al addition on microstructure, texture and mechanical properties of Mg-5Gd-2.5Y–2Zn alloy10.1016/j.jallcom.2016.06.031 ↗
36. Friction stir processing of QE22 magnesium alloy to achieve ultrafine-grained microstructure with enhanced room temperature ductility and texture weakening10.1016/j.matchar.2018.11.020 ↗
37. Grain size effect on tensile properties and slip systems of pure magnesium10.1016/j.actamat.2020.116604 ↗
38. Mechanistic origin and prediction of enhanced ductility in magnesium alloys10.1126/science.aap8716 ↗
39. Mechanistic investigation of a low-alloy Mg–Ca-based extrusion alloy with high strength–ductility synergy10.1016/j.actamat.2020.01.017 ↗
40. Effect of alloying elements on fracture toughness and ductility in magnesium binary alloys; a review10.2320/matertrans.MT-M2019185 ↗
41. Calculation of Schmid factors in magnesium: analysis of deformation behaviors10.1016/j.scriptamat.2012.05.042 ↗
42. High-density three-dimensional mapping of internal strain by tracking microstructural features10.1016/j.actamat.2007.12.058 ↗
43. In situ synchrotron tomography estimation of toughening effect by semi-ductile fibre reinforcement in a tungsten-fibre-reinforced tungsten composite system10.1016/j.actamat.2013.07.035 ↗
44. Analysis of shear banding in metallic glasses under bending10.1016/j.actamat.2005.05.011 ↗
45. Shear band spacing under bending of Zr-based metallic glass plates10.1016/j.actamat.2004.01.034 ↗
46. Effect of aluminum particles on the fracture toughness of a 7093/SiC/15p composite10.1016/S0921-5093(98)00901-0 ↗