Experimental and Numerical Investigation of Grain Refinement in Low Carbon Steel Sheets During Constrained Groove Pressing

Authors

  • Faeze Nejati * Department of Civil Engineering, Ayandegan Institute of Higher Education, Tonekabon, Iran. https://orcid.org/0000-0003-1822-3459
  • Soheila Sojoodi Department of Mechanical Engineering, University of Guilan, Rasht, Iran.

https://doi.org/10.48313/mtei.v1i4.64

Abstract

In the current research work, an Ultrafine-Grained (UFG) microstructure was fabricated in low-carbon steel sheets using the Constrained Groove Pressing (CGP) technique, a state-of-the-art method for producing small grain sizes via Severe Plastic Deformation (SPD). The dies for the CGP were designed and fabricated taking into account the principles of CGP (groove angle of 45° and groove width and depth equal to the sheet thickness, 2 mm). A finite element analysis was performed in 2D plane-strain mode using ABAQUS to examine the distribution of effective plastic strain. Sheets of low-carbon steel measuring 102×50×2 mm³ underwent up to four CGP passes. Properties such as hardness and tensile strength were assessed using the Vickers hardness test and the tensile test (as per the guidelines of ASTM E8M). Optical microscopy was performed to analyze the microstructural evolution in accordance with ASTM standards E03-1, E407-99, and E112. The simulation results showed that, on average, an effective strain of approximately 1.15 per pass can be achieved. Grain diameter was found to decrease from 22.5 µm (ASTM grain size number 8) in the as-received state to 4.5 µm (ASTM number 13.5) after four passes, with an 80% reduction. The increase in hardness was observed to range from 52 HV to 252 HV, representing a 385% improvement. It was proved that the Hall-Petch relation holds with the linear fit (R² > 0.98). This shows that grain refinement is the major strengthening parameter. From both experimental and FEA results, it can be concluded that the CGP process is highly efficient for obtaining ultra-fine-grained sheets with improved mechanical properties.

Keywords:

Constrained groove pressing, Low-carbon steel, Ultrafine-grained microstructure, Finite element simulation, Grain refinement, Mechanical properties

References

  1. [1] Valiev, R. Z., Estrin, Y., Horita, Z., Langdon, T. G., Zechetbauer, M. J., & Zhu, Y. T. (2006). Producing bulk ultrafine-grained materials by severe plastic deformation. JOM, 58(4), 33–39. https://doi.org/10.1007/s11837-006-0213-7
  2. [2] Oh, S. J., & Kang, S. B. (2003). Analysis of the billet deformation during equal channel angular pressing. Materials science and engineering:A, 343(1), 107–115. https://doi.org/10.1016/S0921-5093(02)00324-6
  3. [3] Valiev, R. Z., & Langdon, T. G. (2006). Principles of equal-channel angular pressing as a processing tool for grain refinement. Progress in materials science, 51(7), 881–981. https://doi.org/10.1016/j.pmatsci.2006.02.003
  4. [4] Horita, Z., & Langdon, T. G. (2008). Achieving exceptional superplasticity in a bulk aluminum alloy processed by high-pressure torsion. Scripta materialia, 58(11), 1029–1032. https://doi.org/10.1016/j.scriptamat.2008.01.043
  5. [5] Valiev, R. Z., Islamgaliev, R. K., & Alexandrov, I. V. (2000). Bulk nanostructured materials from severe plastic deformation. Progress in materials science, 45(2), 103–189. https://doi.org/10.1016/S0079-6425(99)00007-9
  6. [6] Huang, J. Y., Zhu, Y. T., Jiang, H., & Lowe, T. C. (2001). Microstructures and dislocation configurations in nanostructured Cu processed by repetitive corrugation and straightening. Acta materialia, 49(9), 1497–1505. https://doi.org/10.1016/S1359-6454(01)00069-6
  7. [7] Huang, J., Zhu, Y. T., Alexander, D. J., Liao, X., Lowe, T. C., & Asaro, R. J. (2004). Development of repetitive corrugation and straightening. Materials science and engineering: a, 371(1), 35–39. https://doi.org/10.1016/S0921-5093(03)00114-X
  8. [8] Lee, S. H., Saito, Y., Tsuji, N., Utsunomiya, H., & Sakai, T. (2002). Role of shear strain in ultragrain refinement by accumulative roll-bonding (ARB) process. Scripta materialia, 46(4), 281–285. https://doi.org/10.1016/S1359-6462(01)01239-8
  9. [9] Saito, Y., Utsunomiya, H., Tsuji, N., & Sakai, T. (1999). Novel ultra-high straining process for bulk materials—development of the accumulative roll-bonding (ARB) process. Acta materialia, 47(2), 579–583. https://doi.org/10.1016/S1359-6454(98)00365-6
  10. [10] Lee, J. W., & Park, J. J. (2002). Numerical and experimental investigations of constrained groove pressing and rolling for grain refinement. Journal of materials processing technology, 130–131, 208–213. https://doi.org/10.1016/S0924-0136(02)00722-7
  11. [11] Shin, D. H., Park, J. J., Kim, Y. S., & Park, K. T. (2002). Constrained groove pressing and its application to grain refinement of Aluminum. Materials science and engineering: A, 328(1), 98–103. https://doi.org/10.1016/S0921-5093(01)01665-3
  12. [12] Hosseini, E., Kazeminezhad, M., Mani, A., & Rafizadeh, E. (2009). On the evolution of flow stress during constrained groove pressing of pure copper sheet. Computational materials science, 45(4), 855–859. https://doi.org/10.1016/j.commatsci.2008.12.004
  13. [13] Krishnaiah, A., Chakkingal, U., & Venugopal, P. (2005). Production of ultrafine grain sizes in aluminium sheets by severe plastic deformation using the technique of groove pressing. Scripta materialia, 52(12), 1229–1233. https://doi.org/10.1016/j.scriptamat.2005.03.001
  14. [14] Zrnik, J., Kovarik, T., Novy, Z., & Cieslar, M. (2009). Ultrafine-grained structure development and deformation behavior of aluminium processed by constrained groove pressing. Materials science and engineering: a, 503(1), 126–129. https://doi.org/10.1016/j.msea.2008.03.050
  15. [15] Yoon, S. C., Krishnaiah, A., Chakkingal, U., & Kim, H. S. (2008). Severe plastic deformation and strain localization in groove pressing. Computational materials science, 43(4), 641–645. https://doi.org/10.1016/j.commatsci.2008.01.007
  16. [16] Hosseini, E., & Kazeminezhad, M. (2010). Integration of physically based models into FE analysis: Homogeneity of copper sheets under large plastic deformations. Computational materials science, 48(1), 166–173. https://doi.org/10.1016/j.commatsci.2009.12.023
  17. [17] Mou, X., Peng, K., Zeng, J., Shaw, L. L., & Qian, K. W. (2011). The influence of the equivalent strain on the microstructure and hardness of H62 brass subjected to multi-cycle constrained groove pressing. Journal of materials processing technology, 211(4), 590–596. https://doi.org/10.1016/j.jmatprotec.2010.11.013
  18. [18] Shirdel, A., Khajeh, A., & Moshksar, M. M. (2010). Experimental and finite element investigation of semi-constrained groove pressing process. Materials & design, 31(2), 946–950. https://doi.org/10.1016/j.matdes.2009.07.035
  19. [19] Borhani, M., & Djavanroodi, F. (2012). Rubber pad-constrained groove pressing process: Experimental and finite element investigation. Materials science and engineering: A, 546, 1–7. https://doi.org/10.1016/j.msea.2012.02.089
  20. [20] Solhjoei, N., Varposhty, A. R., Mokhtarian, H., & Manian, A. P. (2014). A comparative study to evaluate the efficiency of rcs and cgp processes. Indian journal of scientific research (IJSR), 1(2), 563–572. https://api.semanticscholar.org/CorpusID:54881156
  21. [21] Alihosseini, H., & Dehghani, K. (2012). Bake hardening of ultra-fine grained low carbon steel produced by constrained groove pressing. Materials science and engineering: A, 549, 157–162. https://doi.org/10.1016/j.msea.2012.04.024
  22. [22] Khodabakhshi, F., & Kazeminezhad, M. (2011). The effect of constrained groove pressing on grain size, dislocation density and electrical resistivity of low carbon steel. Materials & design, 32(6), 3280–3286. https://doi.org/10.1016/j.matdes.2011.02.032
  23. [23] Khodabakhshi, F., Kazeminezhad, M., & Kokabi, A. H. (2010). Constrained groove pressing of low carbon steel: Nano-structure and mechanical properties. Materials science and engineering: A, 527(16), 4043–4049. https://doi.org/10.1016/j.msea.2010.03.005
  24. [24] Kumar, S. (2023). Strength enhancement and uniform strain distribution through cross route-constrained groove pressing. IOP conference series: Materials science and engineering, 1284(1), 12035. https://doi.org/10.1088/1757-899X/1284/1/012035
  25. [25] Kumar, S. (2023). Developing methods of constrained groove pressing technique: A review. Proceedings of the institution of mechanical engineers, part l: journal of materials: Design and applications, 237(6), 1319–1346. https://doi.org/10.1177/14644207221143358
  26. [26] Khodabakhshi, F., Abbaszadeh, M., Mohebpour, S. R., & Eskandari, H. (2014). 3D finite element analysis and experimental validation of constrained groove pressing–cross route as an SPD process for sheet form metals. The international journal of advanced manufacturing technology, 73(9), 1291–1305. https://doi.org/10.1007/s00170-014-5919-z
  27. [27] Singh, R., Agrahari, S., Yadav, S. D., & Kumar, A. (2021). Microstructural evolution and mechanical properties of 316 austenitic stainless steel by CGP. Materials science and engineering: A, 812, 141105. https://doi.org/10.1016/j.msea.2021.141105
  28. [28] Abdian, M., & Kazeminezhad, M. (2025). The effect of first and repetitive inter-pass annealing during severe plastic deformation on microstructure and mechanical properties of low carbon steel. Results in materials, 26, 100721. https://doi.org/10.1016/j.rinma.2025.100721
  29. [29] Poojitha, V., Raghu, T., & Pandurangadu, V. (2021). Microstructure and mechanical behavior of armco fe severely plastically deformed by combination of constrained groove pressing and cold rolling. Journal of materials engineering and performance, 30(11), 8196–8209. https://doi.org/10.1007/s11665-021-06053-z
  30. [30] Satjabut, P., Kalhor, A., Uthaisangsuk, V., & Mirzadeh, H. (2022). Microstructure and mechanical properties of dual-phase steels by combining adjusted initial microstructures and severe plastic deformation. Steel research international, 93(5), 2100596. https://doi.org/10.1002/srin.202100596

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Published

2024-12-03

Issue

Vol. 1 No. 4 (2024): Mechanical Technology and Engineering Insights (MTEI)

Section

Articles

How to Cite

Nejati, F. ., & Sojoodi, S. . (2024). Experimental and Numerical Investigation of Grain Refinement in Low Carbon Steel Sheets During Constrained Groove Pressing. Mechanical Technology and Engineering Insights, 1(4), 187-197. https://doi.org/10.48313/mtei.v1i4.64

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