ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The internal friction of high-purity aluminium during the process of plastic deformation was measured by a middle torsion pendulum on a modified tensile testing machine. The effects of tensile strain rate, $$\dot \varepsilon $$ , in the range of 0.73×10−6 to 50×10−6s−1, and frequency of internal friction measurement, f, in the range of 0.38 to 2.6 Hz were studied. The results showed a non-linear dependence of internal friction, Q −1, on $$\dot \varepsilon $$ and f −1 or on $$\dot \varepsilon /\omega $$ (ω=2π f). The interrelationship between internal friction during the process of plastic deformation and dislocation motion, and the effect of non-linearity on the dynamic behaviour of dislocations are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00400884
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