The influence of vacancies upon the internal friction of polycrystalline copper
- 1 May 1958
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 3 (29), 519-526
- https://doi.org/10.1080/14786435808244576
Abstract
Neutron irradiation, gamma irradiation and quenching all change the internal friction of pure polycrystalline rods of copper. Only if the rods are initially given an anneal near the melting point for many hours do these three treatments give consistent and similar results, and then the logarithmic decrement is reduced. It is concluded from the results that it is the vacancies introduced by each of the three treatments which pin the dislocation lines by diffusing to them, and that unless the purity of the copper is high their effect can be obscured.Keywords
This publication has 10 references indexed in Scilit:
- The effects of neutron irradiation upon the internal friction of copper single crystals at liquid nitrogen temperaturesPhilosophical Magazine, 1958
- Quench hardening of pure gold as observed by internal friction methodsActa Metallurgica, 1957
- Internal Friction and Critical Stress of Copper AlloysJournal of the Physics Society Japan, 1956
- Effect of Electron Irradiation on Young's ModulusJournal of Applied Physics, 1956
- Strain-Amplitude Dependent Internal Friction Studies of Dilute Alloys of CopperJournal of Applied Physics, 1956
- Effects of Neutron Irradiation upon the Young's Modulus and Internal Friction of Copper Single CrystalsJournal of Applied Physics, 1956
- Theory of Mechanical Damping Due to DislocationsJournal of Applied Physics, 1956
- Effect of heat treatment on the internal friction of aluminium crystalsJournal of Computers in Education, 1955
- Neutron Irradiation Effects Upon Young's Modulus and Internal Friction of CopperJournal of Applied Physics, 1955
- The internal friction of dilute alloys of leadActa Metallurgica, 1955