[S4] Materials Science and Technology in High-Entropy Alloys (XIII)

3:25 PM - 3:40 PM JST(6:25 AM - 6:40 AM UTC)

[S4.20] Analysis of microstructural evolution during heat treatment in a TiZrNbTaMo high-entropy alloy using in-situ high-temperature EBSD

○Haruka Katayama¹, Tatsuya Fukino^4,2, Andrea Školáková^2,3, Pavel Lejček^2,3, Sadahiro Tsurekawa^3,4 (1. Department of Advanced Industrial Science, Kumamoto University, 2. AMETEK Co. Ltd. (JAPAN) , 3. FZU – Institute of Physics of the Czech Academy of Sciences, 4. Division of Materials Science and Chemistry, Faculty of Advanced Science and Technology, Kumamoto University)

Keywords:

TiZrNbTaMo,EBSD

Microstructure evolution of a TiZrNbTaMo alloy at 800°C was observed by high-temperature in-situ EBSD. Early in heating, new grains with different orientations from the matrix formed near grain boundaries with Zr concentration. These grains grew selectively along Zr-rich regions rather than uniformly into grain interiors.