Главная страница
russian   english
16+
<< back

Title of Article

SUPERPLASTICITY OF AL-LI-MG ALLOYS PROCESSED BY EQUAL CHANNEL ANGULAR PRESSING


Issue
6
Date
 2011

Article type
 scientific article
UDC
538.951:539.375.5
Pages
49-57
Keywords
superplasticity, nano- and microcrystalline materials, aluminum alloys, equal channel angular pressing, optimum grain size


Authors
Gryaznov Mikhail Yurevich
Nauchno-issledovatelskiy fiziko-tekhnicheskiy institut Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo, Nizhegorodskiy filial Instituta mashinovedeniya im. A.A. Blagonravova RAN

Chuvildeev Vladimir Nikolaevich
Nauchno-issledovatelskiy fiziko-tekhnicheskiy institut Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo

Kuzin Vadim Evgenevich
Nauchno-issledovatelskiy fiziko-tekhnicheskiy institut Nizhegorodskogo gosuniversiteta im. N.I. Lobachevskogo

Myshlyaev Mikhail Mikhaylovich
Institut metallurgii i materialovedeniya im. A.A. Baykova RAN, Moskva

Kopylov Vladimir Ilich
Fiziko-tekhnicheskiy institut Natsionalnoy akademii nauk Belarusi, Minsk


Abstract
The results of experimental studies of superplasticity of 1420 Al-Li-Mg alloy processed by equal channel angular pressing are presented. Optimum temperatures and strain rates are determined where the alloy has a large superplastic elongation of more than 2000%, high coefficients of the strain rate sensitivity of more than 0.45 and the values of the activation energy lower than 70 kJ/mol. The observed effect of the nonlinear dependence of superplastic elongation on the grain size is explained on the basis of the proposed theoretical model.

File (in Russian)

© ННГУ 2025