Mechanical Spectroscopy of Oil Films on Metallic and Neutral Substrates

Leszek B. Magalas

doi:10.4028/www.scientific.net/SSP.137.215

Paper Titles

Effect of Cold Rolling on the Damping of As Cast Cu-Al-Mn Shape Memory Alloys
p.155

In Situ Neutron Diffraction Study of Internal Stresses in 60% Mn-40% Cu Alloy Introduced by Ageing
p.163

Change of Structure and Properties of 51CrV4 Shaft Caused by Thermo-Mechanical Treatment
p.169

Damping in AZ31 ECAP-Processed Alloy
p.181

Study of PPV Polymer Layers on Si Substrates by Mechanical Spectroscopy
p.189

Do Electromagnetic Pulses Induce the Relaxation or Activation of Microcracking Rate in Loaded Rocks?
p.199

Phase Heterogeneities of Lipidic Aggregates
p.209

Mechanical Spectroscopy of Oil Films on Metallic and Neutral Substrates
p.215

On the History of the Russian School of Anelasticity in Solids
p.231

HomeSolid State PhenomenaSolid State Phenomena Vol. 137Mechanical Spectroscopy of Oil Films on Metallic...

Mechanical Spectroscopy of Oil Films on Metallic and Neutral Substrates

Abstract:

Characteristic low-temperature mechanical loss peaks are reported in cold-rolled steel sheets. Similar mechanical loss peaks are observed in both metallic and paper substrates covered with thin oil films. The surface induced origin of these peaks is elucidated through direct comparison of mechanical loss peaks observed in the as-received, cold-rolled samples with loss peaks observed in metallic and paper substrates covered with thin films of the arachis oils. In all of these instances, similar low-temperature mechanical loss peaks are observed in the temperature range from 180 K up to 300 K in both low-frequency resonant and low-frequency sub-resonant mechanical spectrometers. It is concluded that low-temperature mechanical loss peaks are generated by surface induced effects that arise from the oil film itself.