Method of Dislocation and Bulk Diffusion Parameters Determination

M. V. Yarmolenko

Kyiv National University of Technologies and Design, Cherkasy Branch, Faculty of Market, Information and Innovation Technologies, 241/2 V. Chornovola Str., UA-18028 Cherkasy, Ukraine

Received: 02.02.2019; final version - 24.09.2020. Download: PDF

A method of dislocation pipe diffusion parameters determination during the type $B$ diffusion kinetics is suggested. Proposed method involves diffusion dislocation pipe kinetics for two different annealing times at the same temperature during the type $B$ kinetics and dislocation pipe kinetics for one annealing time at other (lower) temperature during the type $C$ kinetics. Transition time for type $B$ kinetics to type $A$ kinetics (volume diffusion) and kinetics law $t^{1/6}$ for cone top rate are used in this method. Literature experimental data are used for separate determination of the volume diffusion activation energy and the dislocation pipe diffusion activation energy.

Key words: diffusion, dislocations, diffusion laws, activation energy, mathematical modelling.



PACS: 64.75.Op, 66.30.Ny, 66.30.Xj, 68.35.Ct, 68.35.Fx, 68.35.Rh

Citation: M. V. Yarmolenko, Method of Dislocation and Bulk Diffusion Parameters Determination, Metallofiz. Noveishie Tekhnol., 42, No. 11: 1537—1546 (2020)

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