Quasiviscous mass transfer in the high-temperature creep of polycrystals

E. M. Novoselova, T. F. Elsukova, A. I. Olemskoi, V. E. Panin

Research output: Contribution to journalArticle

Abstract

For the example of lead-based alloys, the nature of the grain-surface distortion and its contribution to the deformation in the high-temperature creep of polycrystals is investigated. It is shown that quasiviscous flow associated with nondiffusional motion of atoms in conditions of a strongly excited state of the crystal makes a definite contribution to the distortion of the initially plane grain surface. The development of this deformation mechanism is facilitated by a high test temperature, motion of the grain as a whole in the deforming polycrystal, and the presence of boundary-seeking impurities with strongly different atomic volumes in the alloy in comparison with the base metal.

Original languageEnglish
Pages (from-to)992-996
Number of pages5
JournalSoviet Physics Journal
Volume31
Issue number12
DOIs
Publication statusPublished - Dec 1988

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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