The effect of polymeric biomaterial binder content on corrosion behaviour, magnetic and tribological properties of the magnetic composite based on RE-M-B powder Online publication date: Mon, 10-Dec-2018
by Dorota Klimecka-Tatar; Klaudia Radomska; Grażyna Pawłowska; Piotr Pawlik
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 12, No. 5/6, 2018
Abstract: The electrochemical characteristics of the RE-M-B magnetic powder bonded with polymeric biomaterial have been presented. It has been proven that the ratio of the binder to the magnetic powder effect on the surface roughness of the final magnetic material. With the increase of surface roughness also increases in the actual area of the metallic material contact with an aggressive environment - increased surface roughness promotes penetration of the corrosion medium into the material and consequently is favourable for the corrosive destruction. In the article the results of roughness measurements, vibratory magnetometer, microscopic analysis (2D) and corrosion tests in two corrosive environments: 0.5 M solution of sulphate acidified to pH = 2 and Ringer's solution (pH = 6) have been presented. All tests had been carried out on magnetic composite based on Nd-(Fe, Co)-B magnetic powder bonded with polymeric biomaterial.
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