期刊
CURRENT APPLIED PHYSICS
卷 12, 期 4, 页码 1131-1138出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cap.2012.02.007
关键词
Hydrogen separation; Vanadium alloy; Cold rolling; Annealing treatment; Low angle boundary
资金
- Ministry of Knowledge Economy, Republic of Korea [2008-C-CD11-P-09-0-0000]
- National Research Council of Science & Technology (NST), Republic of Korea [KIER-B22416] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Thin sheets of V85Al10Co5 alloy were produced by a thermo-mechanical treatment consisting in successive hot rolling, cold rolling steps and annealing treatment at high temperature followed by either air cooling or water quenching. Though the values of hydrogen permeability measured for these sheets were significantly reduced as a consequence of the rolling process, the annealing treatment restored almost the hydrogen permeation properties to those of the alloy in the cast condition. EBSD analyses suggested that the post-annealing treatment performed at 1100 degrees C for 3 min after cold rolling induced a recrystallization of the grains resulting in a preferred orientation along the {002} planes. For the sample annealed and water quenched, the value of the hydrogen flux reached about 45 ml/cm(2).min, which is more than twice the value of the flux obtained for thin foils of Pd alloys tested under identical conditions. (C) 2012 Elsevier B. V. All rights reserved.
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