Erosion of Co-Cr-W alloy and coating on its basis under the action of cavitation
The average destruction rates (Vs) were measured under the action of cavitation on a pre-production model from the alloy of Co-Cr-W on chemical composition near to the stellite No.6, its initial components and the coating obtained from a powder of the same composition using plasma generated by a pla...
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| Datum: | 2019 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2019
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| Schriftenreihe: | Вопросы атомной науки и техники |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Erosion of Co-Cr-W alloy and coating on its basis under the action of cavitation / V.I. Kovalenko, A.A. Klimenko, L.I. Martynenko, V.G. Marinin // Problems of atomic science and technology. — 2019. — № 5. — С. 175-178. — Бібліогр.: 14 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The average destruction rates (Vs) were measured under the action of cavitation on a pre-production model from the alloy of Co-Cr-W on chemical composition near to the stellite No.6, its initial components and the coating obtained from a powder of the same composition using plasma generated by a plasma torch. It is established that the average destruction rate (Vs) of chromium, cobalt, tungsten is equal to 3.5; 0.72; 0.56 µm/h, respectively, and Co-Cr-W – 0.5 µm/h. After heat treatment of the Co-Cr-W alloy at a temperature of 1300 K for 3.6 ks, the value of Vs decreases to 0.28 µm/h. The plasma coating is destroyed at a speed of 1.3 µm/h, and steel 15Kh11MF – 2.4 µm/h. Under the action of cavitation in a corrosive environment, a 3% aqueous solution of sodium chloride Vs steel 15Kh11MF and Co-Cr-W alloy increases by 2 times. |
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