Degradation Properties of Hydrogen Storage Alloys and Change of Microstructure during the Degradation

Hideaki Tanaka; Song Han; Qiang Xu; Nobuhiro Kuriyama; K. Aihara; Naoki Taoka

doi:10.4028/www.scientific.net/MSF.561-565.1613

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HomeMaterials Science ForumMaterials Science Forum Vols. 561-565Degradation Properties of Hydrogen Storage Alloys...

Degradation Properties of Hydrogen Storage Alloys and Change of Microstructure during the Degradation

Abstract:

Ti-Cr-V alloys with body-centered cubic (BCC) structure were investigated on hydrogen absorbing-desorbing cyclic durability by using H2 without and with several concentrations of CO (Hereafter, they are described as pure H2 and n ppm CO, respectively.). The alloy which offers the excellent durability except the early stages of cyclic absorption-desorption under pure H2 atmosphere gave good durability also in a flow of low concentration of CO. However, capacities’ degradation curves under high CO concentration reflected that duration and concentration effects competed with each other. The results suggests to be able to express each degradation by intrinsic and extrinsic factors as an aggregation of several prime functions.

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Materials Science Forum (Volumes 561-565)

Pages:

1613-1616

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.561-565.1613

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Online since:

October 2007

Authors:

Hideaki Tanaka, Song Han, Qiang Xu, Nobuhiro Kuriyama, K. Aihara, Naoki Taoka

Keywords:

Bulk Damage, Cyclic Durability, Hydrogen Storage Alloy, Kinetic, Poisoning, Surface

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