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The use of resistivity data in calculating the kinetics of precipitate evolution in aluminium–copper–magnesium alloys based on Johnson–Mehl–Avrami theory
Author(s) -
Sha W.
Publication year - 2005
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200520067
Subject(s) - electrical resistivity and conductivity , copper , aluminium , precipitation , magnesium , materials science , metallurgy , thermodynamics , transformation (genetics) , kinetics , chemistry , physics , biochemistry , quantum mechanics , meteorology , gene
This paper describes the procedure and results of using resistivity data in calculating the amount of precipitation in aluminium–copper–magnesium alloys based on the Johnson–Mehl–Avrami (JMA) theory. Two alloys have been studied, Al–4.38%Cu–1.67%Mg and Al–4.5%Cu–0.56%Mg. The results have demonstrated that resistivity data can be treated to reveal the degree of transformation, for periods when there is a constant increase in its value. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)