Vacancy activation enthalpies of AuFe alloys determined from SRO-induced resistivity changes

Autor:	W. Pfeiler, M. Migschitz
Rok vydání:	1996
Předmět:	Materials science Annealing (metallurgy) Mechanical Engineering Kinetics Enthalpy Metallurgy Thermodynamics Activation energy Condensed Matter Physics Residual resistivity Mechanics of Materials Electrical resistivity and conductivity Vacancy defect General Materials Science Chemical composition
Zdroj:	Materials Science and Engineering: A. 206:155-162
ISSN:	0921-5093
DOI:	10.1016/0921-5093(95)10011-3
Popis:	The kinetics of atomic short-range ordering (SRO) in Au-14-at.% Fe were investigated by measuring residual resistivity after up-quenching and down-quenching over a suitable temperature interval, thus inducing different initial vacancy concentrations and vacancy mobilities. In addition, resistivity variations of Au-5-, 10-, 14- and 20-at.% Fe were measured during isochronal annealing of mechanically deformed and recrystallised samples. By assuming a certain model for SRO relaxation kinetics, migration and formation enthalpies of vacancies as well as vacancy sink densities (dislocation densities) were determined from experimental results. The parameters determined in this way correspond well with each other and with literature data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::362987eb7dc4f72f23a11fe20633d3ca https://doi.org/10.1016/0921-5093(95)10011-3 Zobrazit plný text záznamu Full Text from ScienceDirect