Universal Crackling Noise Links Plasticity in Nanoindentation with Compression in Metallic Glasses
Publication Date
7-22-2025
Description
For decades, compression tests have been a standard method for identifying materials properties. However, these tests are slow, destructive, and require fabricating multiple potentially expensive bulk samples. Nanoindentation is fast, almost non-destructive, and requires only a single sample, to which large numbers of indents can be applied. Furthermore, nanoindentation is widely applicable, even to materials that are too brittle for traditional compression tests. Here, we show that nanoindentation is sufficient for extracting much of the same information that is measured in traditional sample compression tests in metallic glasses. The dynamics and statistics of the plasticity of two types of metallic glasses are equally reflected in compression tests and in nanoindentation. The statistics of the fluctuations at both scales are consistent with the predictions of a mean-field model of slip statistics that applies across at least six decades of length scale in these materials: from compression tests at the millimeter scale to nanoindentation at the nanometer scale. This study provides a basis for a new minimally- destructive high-throughput testing method with applicability to a wider range of scales than previously possible.
Journal
Materials Science and Engineeirng A
Volume
944
First Page
148860-1
Last Page
148860-11
Department
Mechanical Engineering
Second Department
Chemical Engineering
Link to Published Version
https://www.sciencedirect.com/science/article/pii/S0921509325010846?via%3Dihub
DOI
https://doi.org/10.1016/j.msea.2025.148860
Recommended Citation
Sickle, Jordan J.; Higgins, Wesley H.; Baker, Kerry A.; Nakib, Mayisha; Gu, Xiaojun; Pharr, George M.; Wright, Wendelin; and Dahmen, Karin A.. "Universal Crackling Noise Links Plasticity in Nanoindentation with Compression in Metallic Glasses." (2025) : 148860-1-148860-11.