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A High-Throughput Structural and Electrochemical Study of Metallic Glass Formation in Ni-Ti-Al.

ABSTRACT: On the basis of a set of machine learning predictions of glass formation in the Ni-Ti-Al system, we have undertaken a high-throughput experimental study of that system. We utilized rapid synthesis followed by high-throughput structural and electrochemical characterization. Using this dual-modality approach, we are able to better classify the amorphous portion of the library, which we found to be the portion with a full width at half maximum (fwhm) of >0.42 Å^-1 for the first sharp X-ray diffraction peak. Proper phase labeling is important for future machine learning efforts. We demonstrate that the fwhm and corrosion resistance are correlated but that, while chemistry still plays a role in corrosion resistance, a large fwhm, attributed to a glassy phase, is necessary for the highest corrosion resistance.

SUBMITTER: Joress H

PROVIDER: S-EPMC7923748 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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A High-Throughput Structural and Electrochemical Study of Metallic Glass Formation in Ni-Ti-Al.

Joress Howie H DeCost Brian L BL Sarker Suchismita S Braun Trevor M TM Jilani Sidra S Smith Ryan R Ward Logan L Laws Kevin J KJ Mehta Apurva A Hattrick-Simpers Jason R JR

ACS combinatorial science 20200624 7

On the basis of a set of machine learning predictions of glass formation in the Ni-Ti-Al system, we have undertaken a high-throughput experimental study of that system. We utilized rapid synthesis followed by high-throughput structural and electrochemical characterization. Using this dual-modality approach, we are able to better classify the amorphous portion of the library, which we found to be the portion with a full width at half maximum (fwhm) of >0.42 Å<sup>-1</sup> for the first sharp X-ra ...[more]

PMID: 32496755

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