AUTHOR=Hecht Ulrike , Guo Sheng , Weaver Mark L. TITLE=Editorial: Dual-Phase Materials in the Medium and High Entropy Alloy Systems Al-Cr-Fe-Ni and Al-Co-Cr-Fe-Ni JOURNAL=Frontiers in Materials VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2021.718788 DOI=10.3389/fmats.2021.718788 ISSN=2296-8016