INVESTIGATION OF ORDERING AND DISORDERING IN B-DOPED NI76AL24 BY RESIDUAL RESISTOMETRY

Authors
KOZUBSKI R PFEILER W
Citation
R. Kozubski et W. Pfeiler, INVESTIGATION OF ORDERING AND DISORDERING IN B-DOPED NI76AL24 BY RESIDUAL RESISTOMETRY, Journal of alloys and compounds, 220(1-2), 1995, pp. 237-240
Citations number
12
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
220
Issue
1-2
Year of publication
1995
Pages
237 - 240
Database
ISI
SICI code
0925-8388(1995)220:1-2<237:IOOADI>2.0.ZU;2-D
Abstract
Homogeneous long-range ordering (LRO) kinetics in Ni76Al24 + 0.19 at.% B was studied by residual resistometry. The LRO relaxations were comp osed of two simultaneous processes showing dramatically different rate s strongly dependent on temperature. The resulting very high activatio n energy of the processes was in agreement with previous results indic ating its correlation with the value of the ''order-disorder'' transit ion temperature. The results were compared with the literature data an d discussed in terms of the microscopic image of vacancy migration in the L1(2) superstructure.