| abstract |
FIELD: engines. n SUBSTANCE: invention relates to titanium buckets of large size of last stages steam-turbine engines. Bucket includes a titanium-based alloy having a leading edge, including titanium oxide, having pores and a top sealing layer filling pores, sealing layer selected from a group, consisting of chromium, cobalt, nickel, polyimide, polytetrafluoroethylene and polyester. Disclosed is a method of making such bucket and an article containing titanium-based alloy and having a leading edge. n EFFECT: invention provides high durability, and reduced losses from erosion and high economic efficiency. n 20 cl, 4 dwg, 1 tbl |