Defects formed from excess vacancies in aluminum
- 1 May 1965
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 11 (113) , 955-967
- https://doi.org/10.1080/14786436508223957
Abstract
Three types of defects were observed in 99·999% aluminium after quenching from 540°c and ageing at 40°c to allow precipitation of excess vacancies: (1) hexagonal stacking-fault loops with Burgers vector ⅓, (2) rhombus-shaped perfect loops of Burgers vector ½ and (3) octahedral voids with {111} faces. The effect of quenching conditions on the type of defect formed was investigated. Stresses during quenching and the concomitant motion of dislocations were found to result in perfect ½ loops. Quenching conditions that minimized stresses were found to result in ⅓ stacking-fault loops or voids.Keywords
This publication has 11 references indexed in Scilit:
- Formation of Voids and Dislocation Loops in Quenched AluminumJournal of the Physics Society Japan, 1964
- Direct observations of interactions between imperfect loops and moving dislocations in aluminiumPhilosophical Magazine, 1964
- Formation of Diamond-Shaped Prismatic Loops in Quenched fcc MetalsJournal of Applied Physics, 1963
- STACKING FAULTS IN QUENCHED ALUMINUMApplied Physics Letters, 1963
- Precipitation of Vacancies in MetalsReviews of Modern Physics, 1963
- Effect of vacancy clusters on yielding and strain hardening of copperPhilosophical Magazine, 1963
- The effect of quenching history, quenching temperature and trace impurities on vacancy clusters in aluminium and goldPhilosophical Magazine, 1963
- Quenched-in vacancies and quenching strains in goldActa Metallurgica, 1961
- A possible determination of the activation energy for self-diffusion in aluminiumPhilosophical Magazine, 1959
- Dislocation loops in quenched aluminiumPhilosophical Magazine, 1958