Microstructure refinement and strengthening of Al–Cu alloys manipulated by nanocrystalline phases formed by in situ crystallization of Ni–Nb–Ti metallic glasses in melt
Source abstract
Abstract
In this study, the thermal stability of Ni–Nb–Ti metallic glasses was investigated under isothermal and non-isothermal conditions. The effectiveness of NiTi phases, one of the nanosized crystallized phases, as grain refiners for Al–Cu alloys was also investigated from a crystallographic point of view using the edge-to-edge matching (E2EM) model. Thermal analysis showed that NiTi phases promote solidification of α-Al, and these nanocrystalline phases also promote an Al–Cu eutectic reaction and inhibit the growth of eutectic phases. A significant refining effect of α-Al grains from 402.7 μm to 69.1 μm was achieved with 0.05 wt.% nanocrystalline phases. Simultaneously, values for yield strength, ultimate tensile strength and fracture strain of inoculated Al–Cu alloys were increased by 18%, 13% and 78% to 363.2 MPa, 534.3 MPa and 11.92%, respectively, when compared with those of uninoculated Al–Cu alloys. Strengthening mechanisms of Al–Cu alloys manipulated by the nanocrystalline phases are grain boundary strengthening and precipitation strengthening.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Aluminum Alloy Microstructure Properties · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Atomistic calculations of interfacial energies, nucleus shape and size of θ′ precipitates in Al-Cu alloys10.1016/j.actamat.2006.06.010 ↗
2. Enhanced age-hardening behavior in Al–Cu alloys induced by in-situ synthesized TiC nanoparticles10.1016/j.jmst.2018.09.029 ↗
3. Simultaneously increasing strength and ductility of the Al-Cu alloys inoculated by Zr-based metallic glass10.1016/j.matchar.2014.12.016 ↗
4. Effect of Cu addition on microstructures and tensile properties of high-pressure die-casting Al-5.5Mg-0.7Mn alloy10.1016/j.jmst.2018.11.024 ↗
5. Micro-mechanism of texture evolution during isochronal annealing of as-annealed hot rolled Al-Cu-Mg sheet10.1016/j.matdes.2018.107575 ↗
6. Microstructure and mechanical properties at both room and high temperature of in-situ TiC reinforced Al–4.5Cu matrix nanocomposite10.1016/j.jallcom.2018.07.045 ↗
7. Effect of Nb, Y and Zr on thermal stability of nanocrystalline Al-4.5 wt.% Cu alloy prepared by mechanical alloying10.1016/j.jallcom.2017.06.089 ↗
8. Formation of novel microstructures in quenched Al–Cu alloys in steady magnetic field10.1016/j.jallcom.2018.10.006 ↗
9. Formation of equiaxed crystal structures in directionally solidified Al-Si alloys using Nb-based heterogeneous nuclei10.1038/srep39554 ↗
10. Effect of annealing treatment on the microstructure and mechanical properties of a duplex Zr-2.5 Nb alloy10.1016/j.msea.2017.08.107 ↗
11. Wetting of graphite by molten Cu-xSn-yCr ternary alloys at 1373 K10.1016/j.carbon.2019.12.097 ↗
12. Fabrication and characterization of in situ synthesized SiC/Al composites by combustion synthesis and hot press consolidation method10.1155/2017/9314740 ↗
13. Effect of Ta addition on the microstructures and mechanical properties of in situ bi-phase (TiB2-TiCxNy)/(Ni-Ta) cermets10.1016/j.ceramint.2018.11.118 ↗
14. Settling behaviour of different grain refiners in aluminium10.1016/j.msea.2005.08.202 ↗
15. Effect of instability of TiC particles on grain refinement of Al and Al-Mg alloys by addition of Al-Ti-C inoculants10.1179/026708300101507046 ↗
16. Grain refinement behavior of Al-Cu alloys inoculated by various metallic glasses10.1016/j.matchemphys.2015.11.003 ↗
17. The applicability of Johnson-Mehl-Avrami model in the thermal analysis of the crystallization kinetics of glasses10.1016/0040-6031(95)02466-2 ↗
18. Crystallographic study of nucleation in SiC particulate reinforced magnesium matrix composite10.1016/j.jallcom.2017.02.246 ↗
19. Effect of Al content on microstructure and mechanical properties of as-cast Mg-5Nd alloys10.1016/j.jallcom.2017.11.143 ↗
20. Precipitation mechanism of Mg2Ni in Mg-Ni-Y studied by STEM, 3DAP and first-principles calculations10.1016/j.jallcom.2018.03.254 ↗
21. Microstructural evolution and mechanical properties of the AA2219/TiC nanocomposite manufactured by ultrasonic solidification10.1016/j.jallcom.2019.151991 ↗
22. Simultaneously improved strength and toughness of in situ bi-phased TiB2-Ti(C,N)-Ni cermets by Mo addition10.1016/j.jallcom.2019.153068 ↗
23. Unified rationalization of the pitsch and T-H orientation relationships between Widmanstätten cementite and austenite10.1016/S1359-6454(00)00033-1 ↗
24. A two-dimensional analytical approach for phase transformations involving an invariant line strain10.1016/j.actamat.2008.10.003 ↗
25. Surface modification of titanium and titanium alloys: technologies, developments and future interests10.1002/adem.202070017 ↗
26. Some remarks on cooling curves as a principle tool for solidification characterization10.1016/j.jcrysgro.2016.10.071 ↗
27. Estimation of the shifting distance of the eutectic point in hypereutectic Al-Si alloys by the lever rule10.1016/j.scriptamat.2006.11.023 ↗
28. Tensile nanomechanics and the Hall-Petch effect in nanocrystalline aluminium10.1016/j.msea.2017.10.021 ↗
29. Effect of precipitate shape and orientation on Orowan strengthening of non-basal slip modes in hexagonal crystals, application to magnesium alloys10.1016/j.msea.2016.04.056 ↗
30. TiB2 reinforced aluminum based in situ composites fabricated by stir casting10.1016/j.msea.2014.12.033 ↗
31. 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 ↗
32. A facile electron microscopy method for measuring precipitate volume fractions in AlCuMg alloys10.1016/j.matchar.2012.04.009 ↗