Research of experimental compositions of wear-resistant alloys on the basis of cobalt for repair and hardening of working blades of high-pressure turbines by method of laser welding

Farafonov D.P., Degovets M.L., Rogalev A.M.
UDC
620.1:669.25
DOI
10.18577/2307-6046-2017-0-8-5-5
Article PDF (Russian) (683.03 KB)
How to cite
Farafonov D.P., Degovets M.L., Rogalev A.M. Research of experimental compositions of wear-resistant alloys on the basis of cobalt for repair and hardening of working blades of high-pressure turbines by method of laser welding // Proceedings of VIAM. 2017. No. 8. DOI: 10.18577/2307-6046-2017-0-8-5-5. URL: https://test.viam.ru/en/journal/2017/8/5
Keywords
wear resistance, friction coefficient, fretting corrosion, gas turbine engines, metalpowder compositions, hot strength alloys.
Abstract

In article results of researches of heat resisting wear-resistant alloys on the basis of cobalt (systems Co–Cr–W–C, Co–Cr–Mo–Si) are provided. For the purpose of choice of composition of wear-resistant alloy for receiving the high-pure metalpowder composition designed for repair and hardening of high-pressure turbines blades by method of laser welding, comparative researches of properties of experimental cobalt-based alloys are conducted. By results of researches the alloys possessing optimum properties on wear resistances, heat resistance, weldability which can be used for development of technology of receiving from them powder compositions by atomization method are defined.

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