Electron microscopic investigation of aging in the Cu–0.06% Zr alloy
- Authors: Zel’dovich V.I.1, Frolova N.Y.1, Khomskaya I.V.1, Kheifets A.E.1
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Affiliations:
- Institute of Metal Physics, Ural Branch
- Issue: Vol 117, No 7 (2016)
- Pages: 710-718
- Section: Structure, Phase Transformations, and Diffusion
- URL: https://journals.rcsi.science/0031-918X/article/view/166223
- DOI: https://doi.org/10.1134/S0031918X1607019X
- ID: 166223
Cite item
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
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