Determination of the conditions of boronizing steel with heating by laser radiation
The purpose of the authors' investigations is to determine the conditions of obtaining boride coatings on steels heated by laser radiation. The investigations were carried out on an experimental installation containing a continuous-wave CO/sub 2/ laser with a power of up to 800 W (wavelength 10.6 mu m), a device for gripping and shifting the specimens with specified speed, focusing lens of KC1 with focal length 223 mm. It was determined that a boride layer of high quality, 80-120 mu m thick, is attained with a power density of the laser radiation on the surface of steel 45 equal to 0.4 GW/m/sup 2/ and a speed of shifting the specimen of 6-8 mm/sec. Basically, the boride layer consists of the phases Fe/sub 2/B and FeB. The structure and phase composition of the boride layer are predominantly affected by the thickness of the layer of amorphous boron applied to the surface of the specimen.
- Research Organization:
- Belorussian Polytechnic Institute
- OSTI ID:
- 5402163
- Journal Information:
- Met. Sci. Heat Treat. Met. (Engl. Transl.); (United States), Vol. 27:11
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BORON
METALLURGICAL EFFECTS
SURFACE COATING
STEELS
HEAT TREATMENTS
PROTECTIVE COATINGS
SURFACE HARDENING
ZONE MELTING
CARBON DIOXIDE LASERS
CHEMICAL COMPOSITION
ENERGY DENSITY
IRON BORIDES
LASER RADIATION
MICROHARDNESS
MICROSTRUCTURE
TEMPERATURE EFFECTS
X-RAY DIFFRACTION
ALLOYS
BORIDES
BORON COMPOUNDS
COATINGS
COHERENT SCATTERING
CRYSTAL STRUCTURE
DEPOSITION
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELEMENTS
GAS LASERS
HARDENING
HARDNESS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
LASERS
MECHANICAL PROPERTIES
MELTING
PHASE TRANSFORMATIONS
RADIATIONS
SCATTERING
SEMIMETALS
SURFACE TREATMENTS
TRANSITION ELEMENT COMPOUNDS
360101* - Metals & Alloys- Preparation & Fabrication
360102 - Metals & Alloys- Structure & Phase Studies