Paper Title:
Effect of Nature Aging on Positron Lifetime Spectroscopy in Casting and Wrought Al-alloys
  Abstract

Positron annihilation has been performed in order to study the isochronal annealing of wrought (2024, 7075) and cast (AlSi11.35Mg0.23, AlSi10.9Mg0.17Sr0.06) aluminum alloys, at temperatures ranging from RT to 773K, after having been deformed at RT to 25% deformation. Two annealing stages of the microstructures were distinguished, which were attributed to recovery in (2024, AlSi11.35Mg0.23, AlSi10.9Mg0.17Sr0.06) due to point defects and dislocations, respectively, and only one (due to dislocations) in (7075). Also, natural aging for up to more than 650 days was studied as a function of mean lifetime.

  Info
Periodical
Edited by
David J. Fisher
Pages
13-18
DOI
10.4028/www.scientific.net/DDF.265.13
Citation
M.A. Abdel-Rahman, M. Abdel-Rahman, N.A. Kamel, M.S. Abdallah, E. A. Badawi, "Effect of Nature Aging on Positron Lifetime Spectroscopy in Casting and Wrought Al-alloys", Defect and Diffusion Forum, Vol. 265, pp. 13-18, 2007
Online since
May 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: N.I. Vlasova, V.S. Gaviko, A.G. Popov, N.N. Shchegoleva, L.A. Stashkova, Dmitriy Gunderov, Xavier Sauvage
Abstract:Equiatomic FePd alloy in the ordered state has been processed by means of high-pressure torsion deformation (HPTD) and then annealed. X-ray...
392
Authors: Katarzyna Bałdys, Grzegorz Dercz, Łukasz Madej
Abstract:The ferromagnetic shape memory alloys (FSMA) are relatively the brand new smart materials group. The most interesting issue connected with...
171
Authors: M.A. Abdel-Rahman, N.A. Kamel, Abdullah A. Refeay, Emad A. Badawi
Abstract:Positron annihilation lifetime (PAL) measurement is one of the most important nuclear techniques used in materials science. Electrical...
119
Authors: N. Chuchvaga, E. Bogdanova, A. Strelchuk, Evgenia V. Kalinina, D.B. Shustov, M. Zamoryanskaya, V. Shkuratov
Chapter 7: Electrical and Structural Characterization
Abstract:A comparative research of the cathodoluminescence and electrical characteristics of the samples 4H-SiC irradiated with high energy Xe ions...
625