[S1] Materials Science and Technology in High-Entropy Alloys II(1)

[S1.9] Microstructure of a caliber rolled high entropy CoCrFeMnNi alloy – domain structures

*SINGH Alok¹, Basha Althaf Dudekula¹, Matsushita Yoshitaka¹, Tsuchiya Koichi¹, Lu Zhaoping², Nieh Tai-Gang³, Mukai Toshiji⁴ (1. National Institute for Materials Science, Sengen 1-2-1, Tsukuba 305-0047, Japan、2. University of Science and Technology Beijing, Beijing 100083, Peoples Republic of China、3. Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996, USA、4. Department of Mechanical Engineering, Kobe University, Kobe 657-8501, Japan)

Keywords:high entropy alloy、severe plastic deformation、transmission electron microscopy、caliber rolling、domain structure

Caliber rolling was applied to cast CoCrFeMnNi alloy. Thin domains formed along rolling direction. Domain boundaries were complex structures on 111 planes. There is evidence of lattice distortion.