Modelling of two well-known SPD methods (ECAP and MDF) and comparison with a numerical analysis method.
Abstract views: 45 / PDF downloads: 45
Keywords:
ECAP, FEA, Mechanical properties, MDF, SPDAbstract
In this study, two Severe Plastic Deformation (SPD) methods, which significantly improve the
mechanical properties of materials by causing significant improvements in the microstructure of materials,
are comparatively analyzed. The study compares the most well-known and commonly used Equal Channel
Angular Pressing (ECAP) and Multi-Directional Forging (MDF) methods. Both methods have significant
advantages and disadvantages in terms of application and their effects on the material. In this study, which
is a finite element analysis (FEA) study, both methods will be modelled and numerically analyzed, and the
results will be examined comparatively. Therefore, the necessary application forces and changes in material
strain values will be compared for both methods.
Downloads
References
P. W. Bridgman, “Effects of High Shearing Stress Combined with High Hydrostatic Pressure,” Phys. Rev., vol. 48, no. 10, pp. 825–847, Nov. 1935, doi: 10.1103/PhysRev.48.825.
P. W. Bridgman, Studies in Large Plastic Flow and Fracture. Harvard University Press, 1964. doi: 10.4159/harvard.9780674731349.
V. M. Segal, “The method of material preparation for subsequent working,” Pat. USSR, vol. 575892, p. 330, 1977.
V. Segal, “Review: Modes and processes of severe plastic deformation (SPD),” Materials, vol. 11, no. 7. Preprints, Jul. 03, 2018. doi: 10.3390/ma11071175.
Y. Iwahashi, J. Wang, Z. Horita, M. Nemoto, and T. G. Langdon, “Principle of equal-channel angular pressing for the processing of ultra-fine grained materials,” Scr. Mater., vol. 35, no. 2, pp. 143–146, Jul. 1996, doi: 10.1016/1359-6462(96)00107-8.
K. Edalati and Z. Horita, “A review on high-pressure torsion (HPT) from 1935 to 1988,” Mater. Sci. Eng. A, vol. 652, pp. 325–352, 2016, doi: 10.1016/j.msea.2015.11.074.
S. Öğüt, H. Kaya, A. Kentli, and M. Uçar, “Applying hybrid equal channel angular pressing (HECAP) to pure copper using optimized Exp.-ECAP die,” Int. J. Adv. Manuf. Technol., vol. 116, no. 11–12, pp. 3859–3876, Jul. 2021, doi: 10.1007/s00170-021-07717-9.
K. Özbeyaz, H. Kaya, and A. Kentli, “Novel SPD Method: Twisted Variable Channel Angular Extrusion,” Met. Mater. Int., pp. 1–16, Nov. 2021, doi: 10.1007/s12540-021-01086-4.
M. Şahbaz, H. Kaya, and A. Kentli, “A new severe plastic deformation method: thin-walled open channel angular pressing (TWO-CAP),” Int. J. Adv. Manuf. Technol., vol. 106, no. 3–4, pp. 1487–1496, 2020, doi: 10.1007/s00170-019-04748-1.
J. Huang, Y. T. Zhu, D. J. Alexander, X. Liao, T. C. Lowe, and R. J. Asaro, “Development of repetitive corrugation and straightening,” Mater. Sci. Eng. A, vol. 371, no. 1–2, pp. 35–39, Apr. 2004, doi: 10.1016/S0921-5093(03)00114-X.
G. Faraji, M. Mosavi Mashadi, and H. S. Kim, “Tubular channel angular pressing (TCAP) as a novel severe plastic deformation method for cylindrical tubes,” Mater. Lett., vol. 65, no. 19–20, pp. 3009–3012, Oct. 2011, doi: 10.1016/j.matlet.2011.06.039.
E. Akdoğan and M. Şahbaz, “Çok Yönlü Dövme İşleminin AA5083 Alüminyum Alaşımının Mekanik Özellikleri Üzerindeki Etkisi,” Avrupa Bilim ve Teknol. Derg., no. 34, pp. 739–744, 2022.
H. Miura, G. Yu, and X. Yang, “Multi-directional forging of AZ61Mg alloy under decreasing temperature conditions and improvement of its mechanical properties,” Mater. Sci. Eng. A, vol. 528, no. 22–23, pp. 6981–6992, Aug. 2011, doi: 10.1016/j.msea.2011.05.050.
S. Nalkıran and M. Şahbaz, “Effects of the Multi-Directional Forging at Different Deformation Ratios on the Mechanical Properties of AA5083 Aluminum Alloy,” in Proceedings of 27th International Scientific Conference MECHANIKA 2023, Litvania, 2023, pp. 176–178.
S. Öğüt, H. Kaya, and A. Kentli, “Comparison of the Effect of Equal Channel Angular Pressing, Expansion Equal Channel Angular Pressing, and Hybrid Equal Channel Angular Pressing on Mechanical Properties of AZ31 Mg Alloy,” J. Mater. Eng. Perform., pp. 1–13, Nov. 2021, doi: 10.1007/s11665-021-06430-8.