On the novel precipitation sequence of the TiN modified Al-Mn-Sc alloy processed by laser powder bed fusion
Source abstract
Abstract
The influence of TiN addition on the new precipitation sequence and hardening effects of TiN modified Al-Mn-Sc alloy processed by LPBF was systematically studied in this work. The diffusion behavior of TiN particles results in obvious difference in the main alloying elements concentrations, altering the lattice constants of both primary and secondary L1 2 -Al 3 (Ti,Sc,Zr) precipitates in the alloy matrix composite. After being subjected to peak-aging treatment, a novel precipitation sequence was observed in the sample containing 1.5 wt% TiN via generating a higher volume fraction of coherent L1 2 -Al 3 Sc and semi-coherent rod-like Al 6 (Mn,Fe) precursors, corresponding to an alleviated internal strain as well. This new phenomenon has been demonstrated as a novel hardening mechanisms contributing to both microstructure refinement and mechanical property enhancement. As the results, the sample containing 1.5 wt% TiN exhibits an ultra-high yield strength of 651 ± 7 MPa and a compensate fracture elongation rate of 3.9 ± 0.3 %.
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Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · High Entropy Alloys Studies · Welding Techniques and Residual Stresses
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
1. Superior mechanical properties of a selective-laser-melted AlZnMgCuScZr alloy enabled by a tunable hierarchical microstructure and dual-nanoprecipitation10.1016/j.mattod.2021.11.019 ↗
2. Additive manufacturing of metals10.1016/j.actamat.2016.07.019 ↗
3. Additive manufacturing of metallic components – process, structure and properties10.1016/j.pmatsci.2017.10.001 ↗
4. Additive manufacturing (3D printing): a review of materials, methods, applications and challenges10.1016/j.compositesb.2018.02.012 ↗
5. 3D printing of high-strength aluminium alloys10.1038/nature23894 ↗
6. Material-structure-performance integrated laser-metal additive manufacturing
7. 3D printing of aluminium alloys: additive manufacturing of aluminium alloys using selective laser melting10.1016/j.pmatsci.2019.100578 ↗
8. The origins for tensile properties of selective laser melted aluminium alloy A357
9. Selective laser melting of a high strength Al-Mn-Sc alloy: alloy design and strengthening mechanisms10.1016/j.actamat.2019.04.014 ↗
10. Precipitation kinetics, microstructure evolution and mechanical behavior of a developed AlMnSc alloy fabricated by selective laser melting10.1016/j.actamat.2020.04.015 ↗
11. Deformation-based additive manufacturing of 7075 aluminum with wrought-like mechanical properties10.1016/j.matdes.2020.109288 ↗
12. Simultaneous enhancement of strength, ductility, and hardness of TiN/AlSi10Mg nanocomposites via selective laser melting
13. Enhanced printability and strength of unweldable AA2024-based nanocomposites fabricated by laser powder bed fusion via nano-TiC-induced grain refinement10.1016/j.msea.2022.144010 ↗
14. Additive manufacturing enabled synergetic strengthening of bimodal reinforcing particles for aluminum matrix composites
15. Microstructure and dynamic microhardness of additively manufactured (TiB2+TiC)/AlSi10Mg composites with AlSi10Mg and B4C coated Ti powder10.1016/j.jallcom.2023.168718 ↗
16. Enhancing strength and ductility of AlSi10Mg fabricated by selective laser melting by TiB2 nanoparticles10.1016/j.jmst.2021.08.030 ↗
17. Microstructural evolution and strengthening mechanism of high-strength AlSi8.1 Mg1.4 alloy produced by selective laser melting10.1016/j.matdes.2022.110674 ↗
18. Enhanced strength and ductility in Al-Zn-Mg-Cu alloys fabricated by laser powder bed fusion using a synergistic grain-refining strategy10.1016/j.jmst.2021.12.078 ↗
19. A model for predicting the temperature field during selective laser melting10.1016/j.rinp.2018.11.031 ↗
20. Investigation of Ti1- x(Zr,Ta,V,W)xB2 and Al3Ti1- x(Zr,V)x grain refiners in additively manufactured Al-2 wt%Cu alloys by a high throughput method10.1016/j.matdes.2022.111093 ↗
21. Enhanced nanohardness and new insights into texture evolution and phase transformation of TiAl/TiB2 in-situ metal matrix composites prepared via selective laser melting10.1016/j.actamat.2017.07.003 ↗
22. Microstructure evolution and strengthening mechanisms of a high-performance TiN-reinforced Al–Mn–Mg–Sc–Zr alloy processed by laser powder bed fusion10.1016/j.jmst.2023.11.033 ↗
23. Achieving ultra-high strength of laser powder bed fusion TiN nanoparticles reinforced AlMnMgScZr composite via a high volume density of L12-nanoprecipitates
24. Evolution of discontinuous/continuous Al3(Sc,Zr) precipitation in Al-Mg-Mn 5083 alloy during thermomechanical process and its impact on tensile properties10.1016/j.matchar.2022.112241 ↗
25. Strengthening mechanisms of high-performance Al-Mn-Mg-Sc-Zr alloy fabricated by selective laser melting10.1007/s40843-021-1719-8 ↗
26. Microstructure, mechanical performance and nucleation mechanism of laser powder bed fused novel Sc/Zr/Ti-modified Al-Mg alloys10.1016/j.matdes.2024.112827 ↗
27. Anisotropic tensile creep behavior in laser powder bed fusion manufactured Al–Mn–Mg–Sc–Zr alloy10.1016/j.jmrt.2023.12.128 ↗
28. Multiple precipitation pathways in an Al-7Si-0.6Mg alloy fabricated by selective laser melting10.1016/j.scriptamat.2018.09.045 ↗
29. Additively manufactured hierarchical stainless steels with high strength and ductility10.1038/nmat5021 ↗
30. Nanostructured highstrength molybdenum alloys with unprecedented tensile ductility10.1038/nmat3544 ↗
31. Pogatscher · Phys Rev Lett · 2014 · 11210.1103/PhysRevLett.112.225701 ↗
32. Selective laser melted Al-7Si-0.6Mg alloy with in-situ precipitation via platform heating for residual strain removal10.1016/j.matdes.2019.108005 ↗
33. Mechanical behavior and strengthening mechanisms in ultrafine grain precipitation-strengthened aluminum alloy10.1016/j.actamat.2013.09.042 ↗
34. Experimental and modelling assessment of ductility in a precipitation hardening AlMgScZr alloy10.1016/j.ijplas.2021.102971 ↗
35. Hardness-strength relationships in the aluminum alloy 701010.1016/j.msea.2015.02.049 ↗
36. Hardness as an indicator of material strength: a critical review10.1080/10408436.2022.2085659 ↗