Assessment of causes of fracture in 14Kh17N2 steel blades of GTK-25I gas-pumping unit axial-flow compressors

Causes of fracture of the martensitic-ferritic steel blades of the variable inlet guide vane for an axial-flow compressor of the gas pumping unit GTK-25I have been studied. There are several stages of blade fracture: corrosion, fatigue, and fracture. At the initial state, corrosion damage occurs at...

Full description

Saved in:
Bibliographic Details
Published in:Strength of materials 2008-09, Vol.40 (5), p.597-600
Main Authors: Yushchenko, K. A., Savchenko, V. S., Chervyakova, L. V., Izbash, V. I., Solyanik, G.
Format: Article
Language:English
Subjects:
Applied sciences
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Corrosion
Corrosion mechanisms
Exact sciences and technology
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
Materials Science
Metals. Metallurgy
Physics
Solid Mechanics
Structural and continuum mechanics
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Causes of fracture of the martensitic-ferritic steel blades of the variable inlet guide vane for an axial-flow compressor of the gas pumping unit GTK-25I have been studied. There are several stages of blade fracture: corrosion, fatigue, and fracture. At the initial state, corrosion damage occurs at the martensite-ferrite interface, which is followed by intragranular corrosion damage along martensite needles and fatigue failure within the grain bodies.
ISSN:0039-2316
1573-9325
DOI:10.1007/s11223-008-9071-6