Papers by Keyword: Arachis Oil

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.

Abstract: The mechanical loss spectra obtained in metallic samples covered with various thin films of arachis oils containing different sulphur concentrations, different consistency, and different oil fractions are observed in the low-temperature range from 180 K to 300 K. The observed mechanical loss spectra are identified as the surface induced mechanical loss phenomena. It is demonstrated that mechanical loss spectra are induced by the presence of oil films on metallic substrates. It is shown that the shape, the peak location, and the generation of the constituent low-temperature peaks can be controlled by the state of the arachis oil films.