REFERENCES
1. Xu, S. S.; Lu, X. H.; Liu, S. C.; et al. Precipitation strengthening of Cu/NiAl co-precipitates in a martensite-austenite dual-phase steel. Mater. Charact. 2021, 182, 111589.
2. Shen, Q.; Huang, D.; Liu, W.; Li, F.; Lu, Q. Effect of Cu content on the precipitation behavior of Cu-rich and NiAl phases in steel. Mater. Charact. 2022, 187, 111849.
3. Yang, X.; Di, X.; Wang, J.; et al. The co-precipitation evolution of NiAl and Cu nanoparticles and its influence on strengthening and toughening mechanisms in low-carbon ultra-high strength martensite seamless tube steel. Int. J. Plast. 2023, 166, 103654.
4. Zhang, R.; Zhang, Z.; Zhang, Y. Review of Cu-rich nanoprecipitate-strengthened steels: precipitation pathways, alloying control, and strength-toughness synergy. Rev. Mater. Res. 2026, 2, 100260.
5. Jiang, Y.; Lu, X. H.; Wu, X. X.; et al. Microstructure and mechanical properties of a Cu/NiAl nanoprecipitate-strengthened dual-phase steel. Mater. Charact. 2023, 196, 112594.
6. Jiao, Z. B.; Luan, J. H.; Miller, M. K.; Liu, C. T. Precipitation mechanism and mechanical properties of an ultra-high strength steel hardened by nanoscale NiAl and Cu particles. Acta Mater. 2015, 97, 58-67.
7. Li, Y.; Li, T.; Mohapatra, P. P.; Xu, X. Dynamic evolution of Cu-rich core-shell structures triggered by aluminum and its regulation on the stability and hardening effects of nanoparticles. J. Mater. Sci. Technol. 2026, 259, 197-208.
8. Shen, X.; Wang, Y.; Xu, Z.; et al. Atomic-scale study on core-shell Cu precipitation in steels: atom probe tomography and ab initio calculations. Steel Res. Int. 2025, 96, 2400817.
9. Wang, L.; Shen, Q.; Wang, X. Effect of Ni/Cu ratio on the precipitation sequence and microstructural evolution in Fe-Cu-Ni-Al-Mn steel. Model. Simul. Mater. Sci. Eng. 2026, 34, 055013.
10. Lin, W.; Wang, W.; Zhu, S.; Chen, Z.; Fan, C. Concurrent (Fe,Mo)2C carbides and Cu-rich clusters precipitation in ferritic steel containing copper during aging. Philos. Mag. 2022, 102, 1807-31.
11. Bambach, M. D.; Szczepański, Ł.; Żak, A. M. In situ and ex situ TEM analysis of the copper precipitation in martensitic steel. Metall. Mater. Trans. A 2022, 53, 1145-9.
12. Wei, M.; Zhai, T.; Wang, K. A study of grain boundary precipitation of nano-scale Cu-rich phase in polycrystalline Fe-Cu binary alloys using a phase-field method. J. Mater. Res. Technol. 2024, 33, 8983-91.
13. Liang, F.; Su, H.; Luo, X.; Wang, Z.; Chai, F.; Xu, Y. Atom-probe tomographic characterization of nanoscale precipitates in copper-bearing ultra-low-carbon high-strength steel tempered at different temperatures. Coatings 2025, 15, 208.
14. Shen, X.; Görzen, D.; Xu, Z.; et al. Nano-sized Cu precipitation and microstructural evolution in aged ultralow and medium carbon steels. Materialia 2022, 26, 101626.
15. Zhao, Y. Co-precipitated Ni/Mn shell-coated nano Cu-rich core structure: a phase-field study. J. Mater. Res. Technol. 2022, 21, 546-60.
16. Wei, M.; Zhai, T.; Xu, Y.; Tu, Y.; Han, H. A study of the effect of Mn on the precipitation and phase transition of nanoscale Cu-rich phase in Fe-Cu alloys by phase-field method. J. Mater. Res. Technol. 2025, 35, 1971-81.
17. Shabadi, R.; Taillard, R.; Radiguet, B.; De Baerdemaeker, J.; Leunis, E. Effect of Mn on the nanoprecipitation in binary Fe-Cu alloys. Solid State Phenom. 2011, 172-4, 297-302.
18. Li, B.; Zhang, L.; Li, C.; et al. The effect of Mn/Ni on thermodynamic properties of critical nucleus in Fe-Cu-Mn(Ni) ternary alloys. J. Nucl. Mater. 2018, 507, 59-67.
19. Li, T.; Xie, Y.; Wang, X.; et al. Mn promotes the rate of nucleation and growth of precipitates by increasing Frenkel pairs in Fe-Cu-based alloys. RSC Adv. 2019, 9, 19620-9.
20. Miller, M. K.; Wirth, B. D.; Odette, G. R. Precipitation in neutron-irradiated Fe-Cu and Fe-Cu-Mn model alloys: a comparison of APT and SANS data. Mater. Sci. Eng. A 2003, 353, 133-9.
21. Huang, D.; Yan, J.; Zuo, X. Co-precipitation kinetics, microstructural evolution and interfacial segregation in multicomponent nano-precipitated steels. Mater. Charact. 2019, 155, 109786.
22. Kolli, R. P.; Mao, Z.; Seidman, D. N.; Keane, D. T. Identification of a Ni0.5(Al0.5-xMnx) B2 phase at the heterophase interfaces of Cu-rich precipitates in an α-Fe matrix. Appl. Phys. Lett. 2007, 91, 241903.
23. Jiao, Z. B.; Luan, J. H.; Miller, M. K.; Yu, C. Y.; Liu, Y.; Liu, C. T. Precipitate transformation from NiAl-type to Ni2AlMn-type and its influence on the mechanical properties of high-strength steels. Acta Mater. 2016, 110, 31-43.
24. Shen, Q.; Wang, L.; Li, F.; Liu, W.; Wang, X. Effect of ageing temperature on the precipitation behaviors of Fe-CuNiAlMn steel. Mater. Sci. Technol. 2025, 42, 1447-59.
25. Jiao, Z. B.; Luan, J. H.; Miller, M. K.; Yu, C. Y.; Liu, C. T. Group precipitation and age hardening of nanostructured Fe-based alloys with ultra-high strengths. Sci. Rep. 2016, 6, 21364.
26. Zhang, X.; Wang, J.; Liu, S.; Yan, L.; Song, C.; Yu, H. Developing NiAl-strengthened HSLA steels by controlling nanoscale precipitation and high-angle boundaries. Mater. Sci. Eng. A 2022, 861, 144355.
27. Qiu, N.; Zhou, T.; Spartacus, G.; et al. Microstructure after quenching and precipitation behavior during tempering in Fe-Cu-Ni-Al steels. Mater. Charact. 2026, 232, 116012.
28. Sheng, Z.; Bonvalet Rolland, M.; Zhou, T.; Odqvist, J.; Hedström, P. Langer-Schwartz-Kampmann-Wagner precipitation simulations: assessment of models and materials design application for Cu precipitation in PH stainless steels. J. Mater. Sci. 2021, 56, 2650-71.
29. Ramazani, A.; Mukherjee, K.; Schwedt, A.; Goravanchi, P.; Prahl, U.; Bleck, W. Quantification of the effect of transformation-induced geometrically necessary dislocations on the flow-curve modelling of dual-phase steels. Int. J. Plast. 2013, 43, 128-52.
30. Calcagnotto, M.; Ponge, D.; Demir, E.; Raabe, D. Orientation gradients and geometrically necessary dislocations in ultrafine-grained dual-phase steels studied by 2D and 3D EBSD. Mater. Sci. Eng. A 2010, 527, 2738-46.
31. Hu, B.; Luo, H. A novel two-step intercritical annealing process to improve mechanical properties of medium-Mn steel. Acta Mater. 2019, 176, 250-63.
32. Qiu, N.; Shen, Z.; Zuo, X.; Zhou, G. Controlling the nucleation of multiple precipitates in precipitation-strengthened steel through Mo partitioning. Mater. Sci. Technol. 2022, 38, 876-81.
33. Lifshitz, I. M.; Slyozov, V. V. The kinetics of precipitation from supersaturated solid solutions. J. Phys. Chem. Solids 1961, 19, 35-50.
34. Wang, Y.; Liang, C.; Cui, H.; et al. Phase-field study of Cu-rich phase precipitation in Fe-Cu-based six-component alloys with varying Mn content. Intermetallics 2026, 197, 109381.
35. Xu, C.; Dai, W. J.; Chen, Y.; et al. Control of dislocation density maximizing precipitation strengthening effect. J. Mater. Sci. Technol. 2022, 127, 133-43.
36. Koyama, T.; Hashimoto, K.; Onodera, H. Phase-field simulation of phase transformation in Fe-Cu-Mn-Ni quaternary alloy. Mater. Trans. 2006, 47, 2765-72.
37. Takeuchi, A.; Inoue, A. Classification of bulk metallic glasses by atomic size difference, heat of mixing and period of constituent elements and its application to characterization of the main alloying element. Mater. Trans. 2005, 46, 2817-29.
38. Jiao, Z. B.; Luan, J. H.; Miller, M. K.; Yu, C. Y.; Liu, C. T. Effects of Mn partitioning on nanoscale precipitation and mechanical properties of ferritic steels strengthened by NiAl nanoparticles. Acta Mater. 2015, 84, 283-91.
39. Philippe, T.; Voorhees, P. W. Ostwald ripening in multicomponent alloys. Acta Mater. 2013, 61, 4237-44.
40. Sun, Y.; Zhao, Y.; Zhao, B.; et al. Multi-component phase-field simulation of microstructural evolution and elemental distribution in Fe-Cu-Mn-Ni-Al alloy. Calphad 2020, 69, 101759.
41. Kar’kin, I. N.; Kar’kina, L. E.; Gornostyrev, Y. N.; Korzhavyi, A. P. Kinetics of early decomposition stages in diluted bcc Fe-Cu-Ni-Al alloy: MC+MD simulation. Phys. Solid State 2019, 61, 601-8.
42. Wei, X.; Cao, X.; Luan, J. H.; Jiao, Z. B.; Liu, C. T.; Zhang, Z. W. Synergy of strengthening and toughening of a Cu-rich precipitate-strengthened steel. Mater. Sci. Eng. A 2022, 832, 142487.
43. Zhou, B. C.; Yu, C. Y.; Qiu, S.; et al. Atomistic study of Al partitioning and its influence on nanoscale precipitation of Cu-rich nanocluster-strengthened steels. Mater. Charact. 2022, 184, 111687.
