LASER MODIFICATION OF GAS-THERMAL COATINGSFROM STAINLESS STEEL

Authors

  • O. V. Dyachenko Belarusian National Technical University, 67 Independence Ave., 220013 Minsk, the Republic of Belarus Автор
  • S. M. Kriusha Belarusian National Technical University, 67 Independence Ave., 220013 Minsk, the Republic of Belarus Автор
  • M. A. Kardapolova Belarusian National Technical University, 67 Independence Ave., 220013 Minsk, the Republic of Belarus Автор
  • V. S. Golubev State Scientific Institution “The Physical-Technical Institute of the National Academy of Sciences of Belarus”, 10 Kuprevich St., 220141 Minsk, the Republic of Belarus Автор
  • I. I. Vegera State Scientific Institution “The Physical-Technical Institute of the National Academy of Sciences of Belarus”, 10 Kuprevich St., 220141 Minsk, the Republic of Belarus Автор

Keywords:

laser doping; modification; surface layer; microstructure

Abstract

In this paper we studied the features of the influence of energy parameters and technological factors on the effectiveness
of surface treatment using laser methods. The possibility of laser processing of deposited coatings of the
95X18 and AISI 316LSi type in the atmosphere of various gases (air, argon, nitrogen) was studied. In laser doping,
powders of amorphous boron and some carbides and borides were used. The structural phase state and quality of surface
and transition layers were studied. It is shown that the laser doping method can exert a strengthening effect on
both the evaporated layer and the warp sheet. When using amorphous boron for doping, the melted coating layer of
AISI 316LSi stainless steel was observed in almost all the modes used. Moreover, in some modes, a uniform distribution
of microhardness in depth was found.

Fig. 6. Table 1. Ref.: 12 titles.

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Published

2020-06-01

Issue

Section

МАШИНОСТРОЕНИЕ И МАШИНОВЕДЕНИЕ