| Autor: |
Gorshkov, B. N., Kudryavtsev, Yu. P., Loskutov, V. S., Neronov, V. A., Alekseev, V. V. |
| Zdroj: |
Powder Metallurgy and Metal Ceramics; May 1980, Vol. 19 Issue: 5 p350-353, 4p |
| Abstrakt: |
During plasma-deposition chromium, zirconium, titanium, and tungsten borides experience thermal dissociation and react with nitrogen in the working gas and with oxygen in the ambient atmosphere. This leads to the formation in coatings of nitrides and oxides of the metals and of boron. The amount of such inclusions depends on the coating deposition conditions. Optimum conditions for the plasma-deposition of CrB2 and ZrB2 have been chosen. CrB2 and ZrB2 coatings adhere to Kh18N10T steel with strengths of 0.153±0.01 and 0.144±0.04 kgf/mm2, respectively. A nickel aluminide undercoat more than trebles the adhesional strength of boride coatings on Kh18N10T steel. The processes developed for the manufacture of transition metal borides and its optimum conditions and methods for their deposition on Kh18N10T steel by the plasma process may be recommended for adoption in industry. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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