Autors: V. Dyakova., Pl. Tashev., Kandeva, M. K.
Title: Study on the Effect of Nanosized Particles of Tin and SiC on the Wear Resistance, Microstructure and Corrosion Behavior of Overlay Weld Metal
Keywords: nanomodified overlay weld metal, nanoparticles TiN, SiC, TiN

Abstract: The paper presents a comparative study on the effect of TiN, SiC, and TiN+Cr nanosized particles (NP) on the wear resistance, microstructure and corrosion behaviour of specimens of overlay weld metal. The specimens are obtained by manual arc overlay welding. Coated electrodes Е300 containing nanosized particles in the coating and base electrodes without any nanomodification are used. The effect of nanomodifying on wear resistance is determined by comparing the wear resistance of overlay welds produced with electrodes containing nanosized particles and overlay welds produced with base electrode under the same test conditions. The corrosion behaviour is studied using the method of cyclic immersion in 3.5% NaCl for 720 hours. Obtained data on the effect of the type and concentration of nanosized particles on wear resistance and corrosion behaviour of the weld metal are discussed in connection with the microstructure changes induced by the nanomodifiers added in the electrode coating.



    Journal of the Balkan Tribological Association, vol. 26, issue 1, pp. 56-65, 2020, Bulgaria, SciBulCom Ltd., ISBN ISSN:1310-4772

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    Вид: публикация в международен форум, публикация в издание с импакт фактор, индексирана в Web of Science