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Internal stress distribution in friction stir processed AA7075 alloy reinforced by NiTi particles
Nelson Netto +7 more
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A study of the internal friction of some iron-manganese and iron-manganese-carbon alloys /
, 1968 Vivekananda Kandarpa
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Coherency Loss and Internal Friction
Physica Status Solidi (a), 1971Internal friction due to precipitates has been studied in a Cu–3%Co alloy after ageing and cold working. Comparison with results of electron transmission observations from the literature shows conclusively that only in coherent precipitates produce an internal friction peak. This confirms earlier theoretical predictions.
M. Mondino, G. Schoeck
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Internal Friction in Solids III. Experimental Demonstration of Thermoelastic Internal Friction
Physical Review, 1938In order to demonstrate the presence of thermoelastic internal friction, the authors measured the internal friction of a copper reed over a wide frequency range (50 to 4000 cycles/sec.). They obtained a maximum precisely at the predicted frequency. The observed variation of internal friction with frequency proves that, over a wide frequency range, the ...
C. Zener, W. Otis, R. Nuckolls
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The Journal of the Acoustical Society of America, 1978
This paper intends to show that the low-amplitude effects, in particular the attenuation proportional to the frequency from very low frequencies up to the kilohertz range, are connected with the motion of dislocations in cracks. The measurements have been made of the resonant frequencies and the internal friction of spherical rock speciments, including
W. P. Mason +3 more
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This paper intends to show that the low-amplitude effects, in particular the attenuation proportional to the frequency from very low frequencies up to the kilohertz range, are connected with the motion of dislocations in cracks. The measurements have been made of the resonant frequencies and the internal friction of spherical rock speciments, including
W. P. Mason +3 more
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Transactions of the American Society of Mechanical Engineers, 1926
Abstract In connection with a test devised to determine quantitatively the amount of friction within the metal of a steel shaft, it was found that the internal frictional forces were totally unlike those of a viscous fluid, as assumed by many investigators, where the forces are greater the more rapid the deformation. Instead of this, the
A. L. Kimball, D. E. Lovell
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Abstract In connection with a test devised to determine quantitatively the amount of friction within the metal of a steel shaft, it was found that the internal frictional forces were totally unlike those of a viscous fluid, as assumed by many investigators, where the forces are greater the more rapid the deformation. Instead of this, the
A. L. Kimball, D. E. Lovell
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Journal of the Physical Society of Japan, 1958
Internal friction of single crystal of lead (99.99% pure) was measured with longitudinal vibration in kilocycle range using the composite piezoelectric quartz oscillator. The dependences of the internal friction on the strain amplitude (0.5-12×10 -6 ), on the frequency (64, 192 kc/sec) of vibration, and on temperature (140–340°K) were mainly studied ...
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Internal friction of single crystal of lead (99.99% pure) was measured with longitudinal vibration in kilocycle range using the composite piezoelectric quartz oscillator. The dependences of the internal friction on the strain amplitude (0.5-12×10 -6 ), on the frequency (64, 192 kc/sec) of vibration, and on temperature (140–340°K) were mainly studied ...
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THE INTERNAL FRICTION OF METALS
International Materials Reviews, 1962Soundly based metallurgical interest in the internal friction of solids dates from the appearance of Zener's text “Elasticity and Anelasticity of Metals” in 1948.
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