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All Journal Journal of Mathematical and Fundamental Sciences
Muhamad Saparudin
Directorate for Nuclear Facility Management, National Research and Innovation Agency of Indonesia (BRIN), Indonesia
Astronomy Chemistry Earth & Planetary Sciences Mathematics Physics

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Exploring the Impact of Deformation on Strain Energy of Ultrafine-Grained Copper through Equal Channel Angular Pressing: Insights from X-Ray and Neutron Diffraction Muhammad Rifai; Mujamilah Mujamilah; Andon Insani; M. Refai Muslih; Tri Hardi Priyanto; Iwan Sumirat; Bharoto Bharoto; Grace Tj. Sulungbudi; Ahadi Damar Prasetya; Ridwan Ridwan; Muhamad Saparudin; Diene Noor H.; Sairun Sairun; Rifky Apriansyah; Wildan Z. Lubis
Journal of Mathematical and Fundamental Sciences Vol. 57 No. 3 (2026)
Publisher : Directorate for Research and Innovation (DRI) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2026.57.3.4

Abstract

The mechanical behavior of materials at the nanoscale level has attracted significant attention in materials science research. This study investigated the impact of deformation on the strain energy of ultrafine-grained (UFG) copper produced by equal channel angular pressing (ECAP). X-ray and neutron diffraction techniques were employed to analyze the changes in strain energy of the copper samples subjected to varying levels of deformation. The results of the study indicate that the strain energy of the UFG copper increased with increasing levels of deformation due to the formation of dislocations with high density in the copper crystal structure. The study also found that the increase in strain energy was more significant in the initial stages of deformation and then reached a plateau as deformation progressed. This study provides valuable insight into the mechanical behavior of UFG copper and the role of deformation in altering its strain energy. The results can contribute to developing new materials with improved mechanical properties for various aerospace, automotive, and biomedical applications. The study highlights the importance of using advanced techniques such as X-ray and neutron diffraction to accurately investigate the nanoscale mechanical behavior of materials.
Co-Authors Ahadi Damar Prasetya Andon Insani Bharoto Bharoto Diene Noor H. Grace Tj. Sulungbudi Iwan Sumirat M. Refai Muslih Muhammad Rifai Mujamilah Mujamilah Ridwan Ridwan Rifky Apriansyah Sairun Sairun Tri Hardi Priyanto Wildan Z. Lubis