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arXiv · 1912.09330

A high-throughput structural and electrochemical study of metallic glass formation in Ni-Ti-Al

Howie Joress·Brian L. DeCost·Suchismita Sarker·Trevor M. Braun·Sidra Jilani·Ryan Smith·Logan Ward·Kevin J. Laws·Apurva Mehta·Jason Hattrick-Simpers
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Abstract

Based on 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-half-maximum (FWHM) of 0.42 A$^{-1}$ for the first sharp x-ray diffraction peak. We demonstrate that the FWHM and corrosion resistance are correlated but that, while chemistry still plays a role, a large FWHM is necessary for the best corrosion resistance.

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Howie Joress, Brian L. DeCost, Suchismita Sarker, Trevor M. Braun, Sidra Jilani, Ryan Smith, Logan Ward, Kevin J. Laws, Apurva Mehta, Jason Hattrick-Simpers. 2019-12-19. A high-throughput structural and electrochemical study of metallic glass formation in Ni-Ti-Al. https://doi.org/10.1021/acscombsci.9b00215

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