Precipitation Strengthening Behavior of 15-5PH Stainless Steel During Aging at 500 °C
Source abstract
Abstract
The mechanical property and microstructures of the 15-5PH stainless steel aged at 500 °C for different times have been studied in detail by using transmission electron microscopy and atom probe tomography. The precipitation-hardening effect is significant during aging and the peak hardness occurs at 2 h, but prolonged aging decreases the hardness significantly. The peak hardness is attributed to the formation of a large number of Cu-rich precipitates of 3-6 nm in diameter, with the Ni and Mn atoms segregating around the Cu-rich precipitates and forming a core–shell structure. The over-aging process increases the size of Cu-rich precipitates and causes Si and Nb atoms to segregate to the vicinity of Ni and Mn atoms, forming Nb-rich and NbN-rich particles. The formation of various phase precipitates, including possible G-phase particles, and their effects on mechanical property are discussed.
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Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Advanced Materials Characterization Techniques · Microstructure and Mechanical Properties of Steels
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References (26)
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1. H.R. Habibi Bajguirani, The Effect of Ageing Upon the Microstructure and Mechanical Properties of Type 15–5 PH Stainless Steel, Mater. Sci. Eng. A, 2002, 338, p 142.10.1016/S0921-5093(02)00062-X ↗
2. M. Abdelshehid, K. Mahmodieh, and K. Mori, On the Correlation Between Fracture Toughness and Precipitation Hardening Heat Treatments in 15–5PH Stainless Steel, Eng. Fail. Anal., 2007, 14, p 626.10.1016/j.engfailanal.2006.03.001 ↗
3. A. Kumar, Y. Balaji, and N. Eswara Prasad, Indigenous Development and Airworthiness Certification of 15–5 PH Precipitation Hardenable Stainless Steel for Aircraft Applications, Sadhana, 2013, 38(1), p 3.10.1007/s12046-013-0122-8 ↗
4. T. Zhou, R. Prasath Babu, and O. Joakim, Quantitative Electron Microscopy and Physically Based Modelling of Cu Precipitation in Precipitation-Hardening Martensitic Stainless Steel 15–5 PH, Mater. Des., 2018, 143, p 141.10.1016/j.matdes.2018.01.049 ↗
5. H.R. Habibi Bajguirani and M.L. Jenkins, High-Resolution Electron Microscopy Analysis of the Structure of Copper Precipitates in a Martensitic Stainless Steel of Type PH 15–5, Philos. Mag. Letter. A, 1996, 73(4), p 155.10.1080/095008396180786 ↗
6. M. Aghaie Khafri and A. Zargaran, High Temperature Tensile Behavior of a PH Stainless Steel, Mater. Sci. Eng. A, 2010, 527, p 4727.10.1016/j.msea.2010.03.099 ↗
7. V. Anil Kumar, M.K. Karthikeyan, and R.K. Gupta, Aging Behavior in 15–5 PH Precipitation Hardening Martensitic Stainless Steel, Mater. Sci. Forum, 2012, 710, p 483.10.4028/www.scientific.net/MSF.710.483 ↗
8. X.Y. Peng, X.L. Zhou, and X.Z. Hua, Effect of Aging on Hardening Behavior of 15–5 PH Stainless Steel, J. Iron Steel Res. Int., 2015, 22(7), p 607.10.1016/S1006-706X(15)30047-9 ↗
9. L. Couturier, F. De Geuser, and M. Descoins, Evolution of the Microstructure of a 15–5PH Martensitic Stainless Steel During Precipitation Hardening Heat Treatment, Mater. Des., 2016, 107, p 416.10.1016/j.matdes.2016.06.068 ↗
10. H. Luo, Q. Yu, and C.F. Dong, Influence of the Aging Time on the Microstructure and Electrochemical Behaviour of a 15-5PH Ultra-high Strength Stainless Steel, Corros. Sci., 2018, 139, p 185.10.1016/j.corsci.2018.04.032 ↗
11. L. Couturier, F. De Geuser, and A. Deschamps, Microstructural Evolution During Long Time Aging of 15-5PH Stainless Steel, Materialia, 2020, 9, 100634.10.1016/j.mtla.2020.100634 ↗
12. G.M. Worrall, J.T. Buswell, and C.A. English, A Study of the Precipitation of Copper Particles in a Ferrite Matrix, J. Nucl. Mater., 1987, 148, p 107.10.1016/0022-3115(87)90525-3 ↗
13. K. Osamura, H. Okuda, and K. Asano, SANS Study of Phase Decomposition in Fe-Cu alloy with Ni and Mn Addition, ISIJ Int., 1994, 34(4), p 346.10.2355/isijinternational.34.346 ↗
14. M.K. Miller, B.D. Wirth, and G.R. Odette, 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, p 133.10.1016/S0921-5093(02)00679-2 ↗
15. Y.R. Wen, Y.P. Li, and A. Hirata, Synergistic Alloying Effect on Microstructural Evolution and Mechanical Properties of Cu Precipitation-Strengthened Ferritic Alloys, Acta Mater., 2013, 61(20), p 7726.10.1016/j.actamat.2013.09.011 ↗
16. S. Shu, B.D. Wirth, and P.B. Wells, Multi-technique Characterization of the Precipitates in Thermally Aged and Neutron Irradiated Fe-Cu and Fe-Cu-Mn Model Alloys: Atom Probe Tomography Reconstruction Implications, Acta Mater., 2018, 146, p 237.10.1016/j.actamat.2017.12.006 ↗
17. A. Mateo, L. Llanes, and M. Anglada, Characterization of the Intermetallic G-Phase in an AISI 329 Duplex Stainless Steel, J. Mater. Sci., 1997, 32, p 4533.10.1023/A:1018669217124 ↗
18. M. Murayama, Y. Katayama, and K. Hono, Microstructural Evolution in a 17–4 PH Stainless Steel After Aging at 400°C, Metall. Mater. Trans. A, 1999, 30(2), p 345–353.10.1007/s11661-999-0323-2 ↗
19. K.H. Lo, C.H. Shek, and J.K.L. Lai, Recent Developments in Stainless Steels, Mater. Sci. Eng. R, 2009, 65, p 39.10.1016/j.mser.2009.03.001 ↗
20. T. Takeuchi, J. Kameda, and Y. Nagai, Study on Microstructural Changes in Thermally-Aged Stainless Steel Weld-Overlay Cladding of Nuclear Reactor Pressure Vessels by Atom Probe Tomography, J. Nucl. Mater., 2011, 415, p 198.10.1016/j.jnucmat.2011.06.004 ↗
21. I. Shuro, H.H. Kuo, and T. Sasaki, G-Phase Precipitation in Austenitic Stainless Steel Deformed by High Pressure Torsion, Mater. Sci. Eng. R, 2012, 552, p 194.10.1016/j.msea.2012.05.030 ↗
22. S.L. Li, Y.L. Wang, and X.T. Wang, G-Phase Precipitation in Duplex Stainless Steels After Long-Term Thermal Aging: A High-Resolution Transmission Electron Microscopy Study, J. Nucl. Mater., 2014, 452, p 382.10.1016/j.jnucmat.2014.05.069 ↗
23. Y. Matsukawa, T. Takeuchi, and Y. Kakubo, The Two-Step Nucleation of G-Phase in Ferrite, Acta Mater., 2016, 116, p 104–113.10.1016/j.actamat.2016.06.013 ↗
24. G. Yeli, M.A. Auger, and K. Wilford, Sequential Nucleation of Phases in a 17–4PH Steel: Microstructural Characterisation and Mechanical Properties, Acta Mater., 2017, 125, p 38.10.1016/j.actamat.2016.11.052 ↗
25. M.J. Yang, D.J.M. King, and I. Povstugar, Precipitation Behavior in G-Phase Strengthened Ferritic Stainless Steels, Acta Mater., 2021, 205, 116542.10.1016/j.actamat.2020.116542 ↗
26. T.H. Lee, Y.O. Kim, and S.J. Kim, Crystallographic Model for bcc-to-9R Martensitic Transformation of Cu Precipitates in Ferritic Steel, Philos. Mag., 2007, 87(2), p 209–224.10.1080/14786430600909014 ↗