| Autor: |
Yushchenko, K. A., Yarovitsyn, O. V., Nakonechnyi, O. O., Volosatov, I. R., Fomakin, O. O., Khrushchov, G. D. |
| Předmět: |
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| Zdroj: |
Paton Welding Journal; 2020, Issue 11, p25-28, 4p |
| Abstrakt: |
In order to ensure the technological strength at reconditioning of the side sealing element of a sector of nozzle blades from ZhS6K alloy with the required deposition volume of 7‒13 cm³, a less heat-resistant material with sufficient deformability was selected. At microplasma powder surfacing it is characterized by the following level of values of short-time strength relative to the deposited metal ZhS6K: 0.7‒0.8 at 20 °С; 0.5‒0.55 at 1000 °С. Compared to the known technological solutions based on filler materials of ІN625 type, it allowed increasing the level of deposited metal high-temperature strength by practically 2 times at 1000 °С at effective limitation of high-temperature ductility ε1000°С ≤ 1.0‒1.5 %. Proceeding from the described materials science studies, PWI developed a new repair technology of microplasma powder surfacing that has successfully passed experimental-practical trials at SE «Lutsk Repair Plant «Motor». 10 Ref., 2 Tables, 5 Figures. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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