|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XV
||A Combinatorial Approach to Evaluate the Glass-forming Ability of Multi-component Bulk Metallic Glasses
||Chuan Zhang, Fan Zhang, Shuanglin Chen, Weisheng Cao, Jun Zhu, Duchao Lv
|On-Site Speaker (Planned)
Accurate prediction of glass-forming ability (GFA) for multi-component alloy remains a prevalent challenge in the development of bulk metallic glasses (BMGs). The GFA is virtually determined by the stability of the undercooled melt and the competing crystalline phases. Several empirical rules have been proposed to quantify the GFA of alloys, such as T0 curve, deep eutectic rule, driving force criterion etc.. In this work, a combinatorial approach on the basis of several empirical rules and computational thermodynamics are used to systematically evaluate the GFA of a large amount of reported BMGs. Take the advantage of a high-throughput calculation tool implemented in PandatTM, thermodynamic calculations for all summarized BMGs were carried out and the critical parameter values used in empirical rules were then filtered through data mining of the simulated results. Comparison between the predicted GFA and reported results shows reasonable agreement, which provides useful guidelines for the design of BMGs.
||Planned: Supplemental Proceedings volume