Enhancement of First Hydrogenation of Ti(1)V(0.9)Cr(1.1) BCC Alloy by Cold Rolling and Ball Milling

In this study, we evaluated the effects of a mechanical treatment by cold rolling (CR) and ball milling (BM) on the first hydrogenation of Ti(1)V(0.9)Cr(1.1) alloy. The as-cast alloy has a body-centered cubic (BCC) crystal structure, and the first hydrogenation at room temperature under 20 bars of h...

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Detalles Bibliográficos
Autores principales: Sleiman, Salma, Aliouat, Anis, Huot, Jacques
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7411875/
https://www.ncbi.nlm.nih.gov/pubmed/32664633
http://dx.doi.org/10.3390/ma13143106
Descripción
Sumario:In this study, we evaluated the effects of a mechanical treatment by cold rolling (CR) and ball milling (BM) on the first hydrogenation of Ti(1)V(0.9)Cr(1.1) alloy. The as-cast alloy has a body-centered cubic (BCC) crystal structure, and the first hydrogenation at room temperature under 20 bars of hydrogen is practically impossible. However, the samples mechanically activated by CR or BM readily absorbed hydrogen. The sample cold-rolled for one pass exhibited faster kinetics than the sample ball-milled for five minutes, but both samples reached the same storage capacity of 3.6 wt % hydrogen. Increasing the amount of rolling or the milling time decreased the hydrogen capacity. CR is considered the best and most efficient method for the activation of Ti(1)V(0.9)Cr(1.1) alloy.

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