Electron microscopic investigation of aging in the Cu–0.06% Zr alloy


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

The decomposition of supersaturated solid solution in the Cu–0.06 wt% Zr alloy has been investigated. Upon aging of the initially quenched alloy the homogeneous precipitation of particles is dominating. The decomposition begins from the precipitation of a metastable copper–zirconium phase, the particles of which have the shape of nanodimensional disks. An increase in the aging temperature results in the formation of coarser rodlike particles of the Cu5Zr equilibrium phase. Aging of the deformed alloy is characterized by the predominance of the heterogeneous precipitation of particles at subboundaries and dislocations, and the decomposition begins at a lower temperature. The particle size is less by an order of magnitude than that in the quenched state. The precipitation of nanodimensional particles at dislocations retards the formation of recrystallization centers.

About the authors

V. I. Zel’dovich

Institute of Metal Physics, Ural Branch

Author for correspondence.
Email: zeldovich@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990

N. Yu. Frolova

Institute of Metal Physics, Ural Branch

Email: zeldovich@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990

I. V. Khomskaya

Institute of Metal Physics, Ural Branch

Email: zeldovich@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990

A. E. Kheifets

Institute of Metal Physics, Ural Branch

Email: zeldovich@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2016 Pleiades Publishing, Ltd.