FIBER LASER APPLICATION FOR STEEL SURFACE ALLOYING

Authors

  • V. S. Golubev State Scientific Institution “Physical and Technical Institute of the National Academy of Sciences of Belarus”, 10 Akademika Kuprevicha Str., 220141 Minsk, the Republic of Belarus Автор
  • I. I. Vegera State Scientific Institution “Physical and Technical Institute of the National Academy of Sciences of Belarus”, 10 Akademika Kuprevicha Str., 220141 Minsk, the Republic of Belarus Автор
  • V. E. Hodjush State Scientific Institution “Physical and Technical Institute of the National Academy of Sciences of Belarus”, 10 Akademika Kuprevicha Str., 220141 Minsk, the Republic of Belarus Автор
  • O. V. Dyachenko Institution of Education “Belarusian National Technical University”, 65 Nezavisimosti Ave., 220013 Minsk, the Republic of Belarus Автор
  • K. V. Protasevich Institution of Education “Belarusian National Technical University”, 65 Nezavisimosti Ave., 220013 Minsk, the Republic of Belarus Автор

Keywords:

laser alloying; surface layer; microstructure; microhardness

Abstract

The features of alloying the surface of Hardox 600 steel using WC, B4C and Ni(Cr) powders based on exposure
to ytterbium fiber laser radiation have been studied. A study of the quality and surface layers structure, their geometric
dimensions has been carried out. The modes of laser exposure on steel have been selected depending on the radiation
power density installation, the laser spot diameter and the linear speeds of beam movement. It is shown that the laser
alloying process is critical to the processing modes. With a laser radiation power of ~ 2 kW, high-quality doped layers
can be observed more stably throughout the entire energy range of laser beam exposure. With increasing depth of the
alloyed layers when using B4C, the microhardness decreases, which is caused by the decrease in the of introduced
alloying elements concentration. The microhardness of such layers can vary in the range of 7,300…16,000 MPa.

Fig. 5. Ref.: 9 titles.

Downloads

Published

2023-11-01

Issue

Выпуск 2 (14). Ноябрь 2023 года

Section

МАШИНОСТРОЕНИЕ И МАШИНОВЕДЕНИЕ

License

Copyright (c) 2023 Вестник БарГУ Серия "Технические науки"

Лицензия Creative Commons

Это произведение доступно по лицензии Creative Commons «Attribution-NonCommercial» («Атрибуция — Некоммерческое использование») 4.0 Всемирная.

Авторы сохраняют за собой право заключать определенные договорные соглашения, касающиеся неисключительного распространения опубликованной версии работы (например, размещать ее в институциональном репозитории, публикация в книге) со ссылкой на ее первоначальную публикацию в этом журнале.