Kinetics of dissolution of phases upon deformation of nanostructured metals and alloys

• Published in: Physics of metals and metallography Vol. 107; no. 2; pp. 141 - 150
• Main Authors: Vasil’ev, L. S., Lomaev, I. L., Elsukov, E. P.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01-02-2009; Springer Nature B.V
• Subjects: Chemistry and Materials Science; Materials Science; Metallic Materials; Studies; Theory of Metals; 66.30.Pa; 64.70.Nd
• ISSN: 0031-918X; 1555-6190
• DOI: 10.1134/S0031918X09020057

The kinetic features of dissolution of foreign inclusions in the bulk of nanostructured metals upon plastic deformation have been discussed. It has been shown that the rate of dissolution of inclusions substantially depends on the character of structural transformations in the subsystem of intercrystallite boundaries of nanomaterials. Equations that determine the kinetics of dissolution of chemical compounds of metals depending on the rate of structural transformations in intercrystallite boundaries upon deformation have been obtained. The behavior of the kinetic curves of dissolution has been described qualitatively. Numerical estimates of the time of dissolution of inclusions Fe
3
C and Fe
2
B in steels are given which are in satisfactory agreement with experimental data on the mechanical alloying of iron with nonmetals in ball planetary mills.