Bondarenko Y. Physical regularities of cellular precipitation of solid solutions based on Pb and Cu

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0409U004274

Thesis Registration Form

0409U004274.pdf

Applicant for

Specialization

  • 01.04.13 - Фізика металів

01-07-2009

Specialized Academic Board

Д 26.168.01

G. V. Kurdyumov IMPh of the N.A.S.U.

Essay

Thesis deals with kinetic and thermodynamic parameters of cellular precipitation of supersaturated solid solutions for the whole interval of Pb-Sn homogeneous supersaturated solid solutions. Cyclic thermal treatment influence of "cellular precipitation - continuous dissolution" model was investigated on grain alloy structure of Cu-5.7 at.% Ti alloy. It is shown, that concentrations dependences (for first and secondary cellular precipitation) of modified volume value with minimum at 14-15 at. % Sn. Reason of it has been explained by simultaneous influence of two factors: grain boundary mobility and segregation factor. It is established, that initial grain size was milled in more than 35 times by the use of 5 times cyclic thermal treatment of "cellular precipitation - continuous dissolution" model in Cu-5.7 at. % Ti alloy.

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Files

Disser_UkrNTEI.doc

Disser_UkrNTEI.doc

avtorefer_UkrNTEI.doc

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