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Physics of Metals and Metallography
Published in: Physics of Metals and Metallography 8/2018

01-08-2018 | STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION

Positron Annihilation Spectroscopy of the Accumulation of Vacancy Defects in an Aging Fe–Ni–Al Alloy Irradiated at 573 K

Authors: D. A. Perminov, A. P. Druzhkov, V. L. Arbuzov

Published in: Physics of Metals and Metallography | Issue 8/2018

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Abstract

The influence of intermetallic Ni3Al precipitates on the accumulation of vacancy defects in aged Fe–Ni–Al alloy at the initial stages of electron irradiation (5 × 10–4 dpa) at a temperature of 573 K has been studied using positron annihilation spectroscopy. The obtained results demonstrate that intermetallic precipitates inhibit the process of the accumulation of vacancy defects under irradiation. It has been found that these precipitates facilitate the mutual recombination of point defects that form under irradiation. This effect has been attributed to elastic stresses at the precipitate–matrix boundaries.
previous article Scandium-Based Hexagonal-Closed Packed Multi-Component Alloys
next article Effect of Magnetic state of Austenite on Martensitic transformation in Fe–Ni Alloys in High and Zero Magnetic Fields

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Metadata
Title
Positron Annihilation Spectroscopy of the Accumulation of Vacancy Defects in an Aging Fe–Ni–Al Alloy Irradiated at 573 K
Authors
D. A. Perminov
A. P. Druzhkov
V. L. Arbuzov
Publication date
01-08-2018
Publisher
Pleiades Publishing
Published in
Physics of Metals and Metallography / Issue 8/2018
Print ISSN: 0031-918X
Electronic ISSN: 1555-6190
DOI
https://doi.org/10.1134/S0031918X18080094

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