Nikiforov P., Gridasova E., Ryndin N.

PAVEL A. NIKIFOROV, Ph.D., Research Associate, School of Engineering, Far Eastern Federal University, Vladivostok.8 Sukhanova St., Vladivostok, Russia, 690950, е-mail: nikiforovpa@gmail.com 
EKATERINA A. GRIDASOVA, PhD, Associate Professor, Department of Welding Engineering, School of Engineering, Far Eastern Federal University, Vladivostok. 8 Sukhanova St., Vladivostok, Russia, 690950, е-mail: olvin@list.ru 
NIKITA S. RYNDIN, Engineer, Department of Welding Engineering, School of Engineering, Far Eastern Federal University, Vladivostok. 8 Sukhanova St., Vladivostok, Russia, 690950, е-mail: ryndin.ns@gmail.com

The microstructures of babbitt coatings produced by laser powder cladding

The paper deals with the possibilities to modify the process-dependent parameters and the structure of obtained babbitt coatings within the limits of the method of the renovation of laser surface coating to process worn-out parts and harden the surface of new ones. The work was performed by the Far Eastern State University and the Institute of Automation and Control Processes FEB RAS within the framework of researches in the optimisation of operating practices of laser powder cladding for various purposes, one of which being babbitt coating by the method of the renovation of laser surface coating to recondition worn-out plain bearings. The paper presents the results of the investigation of several samples obtained by laser powder cladding. Presented are also the principle characteristics of the regimes and the microstructural analysis of the heat-affected zones.

Key words: laser cladding, microstructure, welding parameters, laser cladding layer.

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