Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 529, Issue -, Pages 128-133Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2012.03.044
Keywords
V-based solid solution alloy; Heat treatment; Microstructure; Hydrogen storage properties
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Funding
- National High Technology Research and Development Program of China [2012AA051503, 2006AA05Z144]
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The as-cast Ti10V77Cr6Fe6Zr alloy was heat-treated at 1373 K for 8 h or 1523 K for 5 min and then quenched in water. The influence of heat treatment on the microstructure and hydrogen storage properties of Ti10V77Cr6Fe6Zr alloy was investigated systematically. The results show that all of the as-cast and heat-treated alloys consist of BCC main phase and C14 Laves secondary phase. After heat treatment, the phase abundance of BCC enhances and the plateau region of P-C-T curve is flattened, but the hydrogen absorption capacity is decreased. However, the alloy heat-treated at 1523 K for 5 min achieves a enhanced hydrogen desorption capacity of 1.82 wt.% at 333 K against 0.1 MPa, which is higher than 1.44 wt.% hydrogen desorption capacity of the as-cast alloy. (C) 2012 Elsevier B.V. All rights reserved.
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