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

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A High-Throughput Structural and Electrochemical Study of Metallic Glass Formation in Ni-Ti-Al.
ACS Combinatorial Science Pub Date : 2020-06-04 , DOI: 10.1021/acscombsci.9b00215
Howie Joress ₁ , Brian L DeCost ₁ , Suchismita Sarker ₂ , Trevor M Braun ₃ , Sidra Jilani ₄ , Ryan Smith ₁ , Logan Ward ₅ , Kevin J Laws ₄ , Apurva Mehta ₂ , Jason R Hattrick-Simpers ₁

Affiliation

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.

中文翻译：

Ni-Ti-Al中金属玻璃形成的高通量结构和电化学研究。

根据一组对Ni-Ti-Al系统中玻璃形成的机器学习预测，我们已经对该系统进行了高通量实验研究。我们利用了快速合成，然后进行了高通量的结构和电化学表征。使用这种双模态方法，我们可以更好地分类库的无定形部分，对于第一道清晰的X射线，我们发现它是半高全宽（fwhm）> 0.42Å ^{–1的部分}。衍射峰。正确的阶段标记对于将来的机器学习工作很重要。我们证明了fwhm和耐蚀性是相关的，但是，尽管化学作用仍在耐蚀性中发挥作用，但归因于玻璃相的大fwhm是获得最高耐蚀性所必需的。

更新日期：2020-07-13

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