Work

Growth and prediction of plastic strain in metallic glasses

Year: 2026

Type: article

Abstract: Predicting yielding in metallic glasses remains challenging because plasticity emerges without clear structural precursors. Here, a physically grounded Bayesian framework is introduced to predict the stress-strain response up to the yield point using plastic strain accumulation already in the nominally elastic regime. Across Cu-Zr(-Al) metallic glasses with varying annealing, two limiting growth laws for plastic strain, power-law and exponential, are identified and linked to distinct microscopic plastic activity patterns. By inferring these growth parameters from stress-strain data below 5% strain, the approach enables early, interpretable predictions of macroscopic deformation and failure.

Source: Physical Review Materials

DOI: 10.1103/xf5s-kdyv

Authors: Tero Mäkinen, Anshul D. S. Parmar, Silvia Bonfanti, Mikko J. Alava

Institutions: Aalto University, National Centre for Nuclear Research, University of Milan

Language: English

Topic: Metallic Glasses and Amorphous Alloys

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green