Abstract
Fe–25Cr–13Co (wt.%) magnetic alloy was produced via vacuum induction melting and investment casting technique. Mechanical working, controlled thermomagnetic, and step aging treatments were utilized to induce anisotropic magnetic characteristics in the alloy samples. Core issue for producing permanent magnets is to get high magnetic properties at higher working temperatures by using low-priced elements. This work covers the detail of processing steps and Taguchi design of experiment utilized for processing the low cost and modest performance Fe–Cr–Co magnets. Alloy state, quenching medium, magnetic field strength during thermomagnetic treatment, and step aging treatment cycle time were selected as control factors for the Taguchi experiments and results were analyzed for SN ratios and main effects. The Taguchi L9 experimentation revealed that when 50%-forged alloy quenched in liquid nitrogen during the solution treatment, holding in 6 kG during isothermal-magnetic treatment, and lastly aged for 24 h at low temperature yielded maximum magnetic properties, i.e., 3.456 MGOe. The metallurgical reasons for increase or decrease in magnetic properties are discussed, considering x-ray diffraction, differential thermal analysis, and microstructural results.
Similar content being viewed by others
References
Khan S, Imran SH, Khan M, Khan N (2016) Practical implementation of the on-board solar photovoltaic for the passenger transportation. Int J Smart Grid Clean Energy 168–173. https://doi.org/10.12720/sgce.5.3.168-173
Sugimoto S (2011) Current status and recent topics of rare-earth permanent magnets. J Phys D Appl Phys 44(6):064001. https://doi.org/10.1088/0022-3727/44/6/064001
Akhtar S, Haider A, Ahmad Z, Farooque M (2010) Development of NdFeB magnet through hydrogen decrepitation. Key Eng Mater 442:263–267. https://doi.org/10.4028/www.scientific.net/KEM.442.263
Akhtar S, Khan M, Khan AN, Jaffery SHI (2020) Effect of microstructure on the coercivity of SmCo5 intermetallic compound. Mater Trans 61(11):2195–2200. https://doi.org/10.2320/matertrans.MT-M2019350
Haider A, Akhtar S, Ahmad Z, Farooque M (2010) Effect of thermal treatment on coercivity of SmCo5 sintered magnets. Key Eng Mater 442:250–254. https://doi.org/10.4028/www.scientific.net/KEM.442.250
Kaneko H, Homma M, Nakamura K (1972) New ductile permanent magnet of Fe-Cr-Co system. 1088(1):1088–1092. https://doi.org/10.1063/1.2953814
Mohapatra J, Xing M, Elkins J, Liu JP (2020) Hard and semi-hard magnetic materials based on cobalt and cobalt alloys. J Alloys Compd 824:153874. https://doi.org/10.1016/j.jallcom.2020.153874
He Y, Zhang H, Su H, Shen P, Hou Y, Zhou D (2022) In situ alloying of Fe-Cr-Co permanent magnet by selective laser melting of elemental iron, chromium and cobalt mixed powders. Metals (Basel) 12(10):1634. https://doi.org/10.3390/met12101634
Belozerov EV et al (2012) High-strength magnetically hard Fe-Cr-Co-based alloys with reduced content of chromium and cobalt. Phys Met Metallogr 113(4):319–325. https://doi.org/10.1134/S0031918X12040023
Milyaev IM, Alymov MI, Bouryakov IN, Yusupov VS, Abashev DM (2018) Magnetic properties of powder hard magnetic Fe-27Cr-10Co-0.5Mo and Fe-27Cr-10Co-2Mo alloys. IOP Conf Ser Mater Sci Eng 347(1):0-7. https://doi.org/10.1088/1757-899X/347/1/012053
Garganeev AG, Padalko DA (2014) Application of Fe-Cr-Co hard magnetic materials as the alternative to Sm-Co and Nd-Fe-B. In: 2014 15th International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM), pp 392–394. https://doi.org/10.1109/EDM.2014.6882555
Chróst K, Kłodaś J (1989) The influence of heat treatment conditions in an external magnetic field on the structure and magnetic properties of the Fe-25Cr-12Co alloy. J Magn Magn Mater 80(2–3):359–366. https://doi.org/10.1016/0304-8853(89)90142-X
Findik F (2012) Improvements in spinodal alloys from past to present. Mater Des 42:131–146. https://doi.org/10.1016/j.matdes.2012.05.039
Hao Han X et al (2018) Microstructure and phase transition of Fe-24Cr-12Co-1.5Si ribbons. J Alloys Compd 731:10–17. https://doi.org/10.1016/j.jallcom.2017.10.029
Jin S, Chin G (1987) Fe-Cr-Co magnets. IEEE Trans Magn 23(5):3187–3192. https://doi.org/10.1109/TMAG.1987.1065353
Cahn JW (1961) On spinodal decomposition. Acta Metall 9(9):795–801. https://doi.org/10.1016/0001-6160(61)90182-1
Xiong W, Selleby M, Chen Q, Odqvist J, Du Y (2010) Phase equilibria and thermodynamic properties in the Fe-Cr system. Crit Rev Solid State Mater Sci 35(2):125–152. https://doi.org/10.1080/10408431003788472
Sun XY, Xu CY, Zhen L, Gao RS, Xu RG (2004) Microstructure and magnetic properties of Fe–25Cr–12Co–1Si alloy thermo-magnetically treated in intense magnetic field. J Magn Magn Mater 283(2–3):231–237. https://doi.org/10.1016/j.jmmm.2004.05.027
Brenner S, Camus P, Miller M, Soffa W (1984) Phase separation and coarsening in FeCrCo alloys. Acta Metall 32(8):1217–1227. https://doi.org/10.1016/0001-6160(84)90128-7
Zhang L, Xiang Z, Li X, Wang E (2018) Spinodal decomposition in Fe-25Cr-12Co alloys under the influence of high magnetic field and the effect of grain boundary. Nanomaterials 8(8):1–14. https://doi.org/10.3390/nano8080578
Altafi M, Ghasemi A, Sharifi EM (2019) The influence of cold rolling and thermomagnetic treatment on the magnetic and mechanical properties of Fe-23Cr-9Co alloy. J Magn Magn Mater 491(July):165537. https://doi.org/10.1016/j.jmmm.2019.165537
Haider A, Jaffery SHI, Khan AN, Khan M (2022) Processing of silicon added Fe-Cr-Co hard magnetic alloy by two stage thermomagnetic treatment technique. Proc IMechE B J Eng Manuf. https://doi.org/10.1177/09544054221136391
Baydarov SY, Kamynin AV, Kraposhin VS, Chernyshev DL (2020) Problems of development of Mim technology in Russia as applied to production of permanent magnets. Met Sci Heat Treat 61(9–10):559–562. https://doi.org/10.1007/s11041-020-00461-z
Green ML, Sherwood RC, Wong CC (1982) Powder metallurgy processing of CrCoFe permanent magnet alloys containing 5–25 wt. % Co. J Appl Phys 53(3):2398–2400. https://doi.org/10.1063/1.330824
Shatsov AA (2004) Powder materials of the Fe - Cr - Co system. Met Sci Heat Treat 46(3–4):152–155. https://doi.org/10.1023/B:MSAT.0000036668.48856.02
Gavrikov IS, Chernyshev BD, Kamynin AV, Everstov AA, Belonozhkin BY, Kraposhin VS (2020) Fabrication of granulate from a Fe – Cr – Co alloy with reduced cobalt content for synthesizing permanent magnets by the MIM process. Met Sci Heat Treat 62(7–8):513–517. https://doi.org/10.1007/s11041-020-00594-1
Efremov DV, Gerasimova AA (2021) Production of Fe–Cr–Co-based magnets by selective laser sintering. Steel Transl 51(10):688–692. https://doi.org/10.3103/S0967091221100028
Homma M, Okada M, Minowa T, Horikoshi E (1981) Fe-Cr-Co permanent Magnet alloys heat-treated in the ridge region of the miscibility gap. IEEE Trans Magn 17(6):3473–3478. https://doi.org/10.1109/TMAG.1981.1061702
Xiang Z et al (2021) Ultrafine microstructure and hardness in Fe-Cr-Co alloy induced by spinodal decomposition under magnetic field. Mater Des 199:109383. https://doi.org/10.1016/j.matdes.2020.109383
Okada M, Thomas G, Homma M, Kaneko H (1978) Microstructure and magnetic properties of Fe-Cr-Co alloys. IEEE Trans Magn 14(4):245–252. https://doi.org/10.1109/TMAG.1978.1059752
Kurt M, Bagci E, Kaynak Y (2009) Application of Taguchi methods in the optimization of cutting parameters for surface finish and hole diameter accuracy in dry drilling processes. Int J Adv Manuf Technol 40(5–6):458–469. https://doi.org/10.1007/s00170-007-1368-2
Rojas JGM, Ghasri-Khouzani M, Wolfe T, Fleck B, Henein H, Qureshi AJ (2021) Preliminary geometrical and microstructural characterization of WC-reinforced NiCrBSi matrix composites fabricated by plasma transferred arc additive manufacturing through Taguchi-based experimentation. Int J Adv Manuf Technol 113(5–6):1451–1468. https://doi.org/10.1007/s00170-020-06388-2
Taguchi G, Phadke MS (1989) Quality engineering through design optimization. In: Quality Control, Robust Design, and the Taguchi Method. Springer US, Boston, pp 77–96
Zhukova EK, Malinina RI, Zhukov DG, Shubakov VS, Menushenkov VP (2014) Heat treatment and magnetic properties of cold-deformed alloy 30Kh15K2MT. Met Sci Heat Treat 56(1–2):74–77. https://doi.org/10.1007/s11041-014-9706-0
Phadke MS (1995) Quality engineering using robust design. Prentice Hall PTR
Altafi M, Mohammad Sharifi E, Ghasemi A (2020) The effect of various heat treatments on the magnetic behavior of the Fe-Cr-Co magnetically hard alloy. J Magn Magn Mater 507(9):166837. https://doi.org/10.1016/j.jmmm.2020.166837
Zhang H, Ji X, Ma D, Tong M (2020) Effect of aging temperature on the austenite reversion and mechanical properties of a Fe e 10Cr e 10Ni cryogenic maraging steel. J Mater Res Technol 11:98–111. https://doi.org/10.1016/j.jmrt.2020.12.096
Hsiao CN, Chiou CS, Yang JR (2002) Aging reactions in a 17–4 PH stainless steel. Mater Chem Phys 74(2):134–142. https://doi.org/10.1016/S0254-0584(01)00460-6
Vodárek V, Rožnovská G, Kuboň Z, Volodarskaja A, Palupčíková R (2022) The effect of long-term ageing at 475 °C on microstructure and properties of a precipitation hardening martensiticstainless steel. Metals (Basel) 12(10):1643. https://doi.org/10.3390/met12101643
Author information
Authors and Affiliations
Contributions
The first author is the investigator; the second author is supervisor. The third and fourth authors are co-supervisors and helped in design of experiment, investigation and result analysis.
Corresponding author
Ethics declarations
Conflict of interest
The authors declare no competing interests.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Haider, A., Jaffery, S.H.I., Khan, A.N. et al. Optimization of manufacturing parameters for Fe–25Cr–13Co magnetic alloy by using Taguchi technique. Int J Adv Manuf Technol 126, 1363–1378 (2023). https://doi.org/10.1007/s00170-023-11201-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00170-023-11201-x