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Improving the Characteristics of Wear-Resistant Coatings Obtained by HDTV-Boration, their Modification by Intermetallic Compounds of Fe-Al and Ni-Al Systems
- Source :
- Materials Science Forum. 992:640-646
- Publication Year :
- 2020
- Publisher :
- Trans Tech Publications, Ltd., 2020.
-
Abstract
- Innovative technology of HDTV-borating, that is distinguished by high hardness, strength, wear resistance and corrosion resistance occupies a special place among the hardening processes for steels and construction materials. During the new technology process HDTV-boration of structural steel 65Mn (65Г in Russian) under a mix layer of charge mixture based on fused borate fluxing agent P-0.66, boron carbide and intermetallic compounds FexAly, NixAly.Using the methods of X-ray phase analysis, spectrography and metallography, the composition and structure of coatings were determined, the microhardness distribution over the coating thickness was studied. In the coatings, new phases of intermetallic compounds, the double superhard boride Fe2AlB2, were found; in the coatings, the base iron boride is FeB, what leads to an increase in their hardness and wear resistance. Modification of boride coatings formed by intermetallic compounds with melting temperatures close to the process temperature of HFC surfacing leads to a decrease in the cracks number and the appearance of new consumer qualities of the material.
- Subjects :
- 010302 applied physics
Materials science
Mechanical Engineering
Metallurgy
Intermetallic
02 engineering and technology
Boron carbide
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
chemistry.chemical_compound
chemistry
Mechanics of Materials
0103 physical sciences
General Materials Science
Wear resistant
0210 nano-technology
Subjects
Details
- ISSN :
- 16629752
- Volume :
- 992
- Database :
- OpenAIRE
- Journal :
- Materials Science Forum
- Accession number :
- edsair.doi...........6f52b5ac30ca61f8a7f3cdea2eaba591