We show the correlation between nanoscale structural heterogeneity and mechanical property and glass forming ability of Zr-based metallic glasses (MGs). Detailed parameters of medium range ordering (MRO) that constitutes the structural heterogeneity, including the type, size, and volume fraction of MRO domains determined using 4-dimensional scanning transmission electron microscopy, directly correlate with the ductility and glass forming ability of Zr-Cu-Co-Al MGs. Mesoscale deformation simulation incorporating the experimentally determined MRO confirms that the diverse types and sizes of MRO can significantly influence the MGs' mechanical behavior.
@article{arxiv.2002.09347,
title = {Structural Heterogeneity, Ductility, and Glass Forming Ability of Zr-Based Metallic Glasses},
author = {Soohyun Im and Pengyang Zhao and Geun Hee Yoo and Zhen Chen and Gabriel Calderon and Mehrdad Abbasi Gharacheh and Olivia Licata and Baishakhi Mazumder and David A. Muller and Eun Soo Park and Yunzhi Wang and Jinwoo Hwang},
journal= {arXiv preprint arXiv:2002.09347},
year = {2020}
}