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TECHNOLOGIСAL MODES OF LASER PROCESSING AND THEIR INFLUENCE ON PHYSICAL AND MECHANICAL PROPERTIES OF Fe–Cr–B–Si COATINGS

Abstract

The paper investigates an influence of laser processing modes pertaining to gas-thermal coatings of iron- based powders after melting with modifying coatings on their micro-hardness, microstructure and porosity. Conditions for obtaining of coatings with the most uniform distribution of alloying substances have been revealed in the paper. The paper considers characteristics of porosity changes in Fe-Cr-B-Si coatings due to speed of movement, diameter and temperature of a laser beam spot.

About the Author

O. V. Diachenko
Belarusian National Technical University
Belarus


References

1. Spiridonova, I. M. (1984) Structure and Properties of Iron-Boron-Carbon Alloys. Metallovedenie i Termicheskaya Obrabotka Metallov [Metal Science and Thermal Metal Treatment], 2, 58-61.

2. Grigoriants, A. G., Safonov, A. N. (1987) Lazer Equipment and Ttechnology. Vol. 3: Methods of Laser Surface Treatment. ?oskow: Vysshaya Shkola.

3. Dorozhkin, N. N., Abramovich, T. M., Yaroshevich, V. K., Anisovich, G. A. (1985) Impulse Methods for Powder Coatings. Minsk: Nauka i Tekhnika [Science and Technology].

4. Dudarev, Yu. I. (1998) Approximate Relationships for Temperature in the Center of Heat Source Moving along Thin Plate Surface. Fizika i Khimia Obrabotki Materialov [Physics and Chemistry of Material Treatment], 2, 24-26.


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For citations:


Diachenko O.V. TECHNOLOGIСAL MODES OF LASER PROCESSING AND THEIR INFLUENCE ON PHYSICAL AND MECHANICAL PROPERTIES OF Fe–Cr–B–Si COATINGS. Science & Technique. 2014;(2):13-18. (In Russ.)

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ISSN 2227-1031 (Print)
ISSN 2414-0392 (Online)