Open AccessFailure Analysis of 2Cr13 Blade in a 135MW Low Pressure Steam Turbine
Author(s) -
Hai Zhao,
Chong Jiang,
Zhiwei Gao,
Bing Hu,
Chengchuan Tian
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/526/1/012144
Subject(s) - fracture (geology) , steam turbine , blade (archaeology) , materials science , machining , mortise and tenon , turbine blade , failure mode and effects analysis , failure mechanism , turbine , rotor (electric) , structural engineering , engineering , metallurgy , composite material , mechanical engineering
The failure mode and causes of low-pressure rotor 2Cr13 stainless steel blades in a power plant steam turbine were analyzed using fracture analysis, SEM, chemical composition analysis and metallographic techniques. The fracture characteristics and mechanism of the blades were discussed. The results show that the failure mode is fatigue which was caused by the machining tool mark at R corner of blade root and tenon transition area.