Grain boundary engineering approaches for the structure optimization in commercial copper M1

• Published in: Russian physics journal Vol. 68; no. 3; pp. 444 - 451
• Main Authors: Kozlova, T. V., Kuznetsov, P. V., Meisner, S. N., Burlachenko, A. G., Mishin, I. P.
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.03.2025; Springer Nature B.V
• Subjects: Condensed Matter Physics; Copper; Grain boundaries; Hadrons; Heavy Ions; Lasers; Mathematical and Computational Physics; Misalignment; Nuclear Physics; Optical Devices; Optics; Optimization; Photonics; Physics; Physics and Astronomy; Recrystallization; Strain annealing; Theoretical; Thermomechanical treatment; Twin boundaries; Twin cluster; Random high angle boundaries; Multiple twinning; Grain boundary engineering
• ISSN: 1064-8887; 1573-9228
• DOI: 10.1007/s11182-025-03451-x

The effect of successive thermomechanical treatment in the strain annealing and strain recrystallization modes to the structure optimization of commercial copper M1 is studied within the grain boundary engineering approach. The chosen thermomechanical treatment modes lead to a significant increase in the twin boundary proportion compared to the recrystallized state, the twin clusters formation, and the disruption of the connectivity of random high-angle boundaries. After the thermomechanical treatment in the strain annealing and strain recrystallization modes, the twin cluster growth has been observed; however, the deviation from the ideal twin misorientation has also been increased.