Paper Title:
Positron Lifetime Study on Degradation of TiCrV Hydrogen Storage Alloy
  Abstract

Using positron lifetime spectroscopy, we examined the evolution of defects in the Ti24Cr36V40 alloy prepared by arc-melting method during hydriding cycles. We found that the positron lifetime increases with increasing the pressure swing cycles. This behavior is well correlated with the degradation of hydrogen transfer change with the pressure swing cycles. The prolonged positron lifetime is attributed to dislocation-related defects. Both dislocations and vacancies bound at dislocations may act as positron trapping centers. After the heat treatment at 400oC, a partial recovery of positron lifetime was observed.

  Info
Periodical
Edited by
S. J. Wang, Z. Q. Chen, B. Wang and Y. C. Jean
Pages
122-124
DOI
10.4028/www.scientific.net/MSF.607.122
Citation
A. Kawasuso, H. Arashima, M. Maekawa, H. Itoh, T. Kabutomori, "Positron Lifetime Study on Degradation of TiCrV Hydrogen Storage Alloy", Materials Science Forum, Vol. 607, pp. 122-124, 2009
Online since
November 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: V. Nadtochy, I. Zhikharev, M. Golodenko, M. Nechvolod
253
Authors: Jenő Gubicza, Magdy Kassem, Tamás Ungár
Abstract:The effect of the nominal Mg content and the milling time on the microstructure of mechanically alloyed Al(Mg) solid solutions is...
103
Authors: Zhi Qiang Li, Hong Liang Hou, Y.Q. Wang
Abstract:Effects of hydrogen on superplastic deformation behavior were investigated through high temperature tensile experiment in this paper. It is...
591
Authors: S. Shevchenko, A.N. Tereshchenko
Abstract:Dislocation photoluminescence (DPL) is studied at 4.2K in plastically deformed germanium single crystals containing predominantly 60fl...
583
Authors: Sayed Ghafar Hashemi, Beitallah Eghbali
Abstract:In the present research, the microstructural features of ultrafine grained Cu-30 Zn alloy via ARB at room temperature were investigated by...
571