Open AccessRepairability analysis of the energy gas turbine rotor blade second stage shroud by high-temperature brazing
Author(s) -
Piotr Klimczuk
Publication year - 2021
Publication title -
przegląd spawalnictwa
Language(s) - English
Resource type - Journals
eISSN - 2449-7959
pISSN - 0033-2364
DOI - 10.26628/wtr.v93i2.1123
Subject(s) - shroud , brazing , rotor (electric) , materials science , gas turbines , scanning electron microscope , honeycomb , mechanical engineering , blade (archaeology) , turbine blade , stage (stratigraphy) , metallurgy , turbine , composite material , alloy , engineering , geology , paleontology
The article considers the repair of the energy gas turbine rotor blade second stage shroud. The paper presents an analysis of the possibility of the repair consisting of the replacement of both labyrinth and honeycomb seals by the high-temperature brazing process. All the steps of the repair process were discussed and the results of microscopic metallographic evaluation using a light microscope and a scanning electron microscope were presented. Several advantages related to the use of this technology were indicated.