SEDL / STP / STP948-EB / STP25627S

Fracture Morphology of 13% Chromium Steam Turbine Blading Steel

Bhambri, SK
Laboratory manager—Metallurgy, Corporate R & D, Bharat Heavy Electricals, Ltd., Hyderabad,

Pages: 16    Published: Jan 1987

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Abstract

To understand micromechanisms of steam turbine blade failures, a variety of fracture morphology was generated in 13Cr-Mo-V steel by controlled laboratory tests. The primary variables were microstructural condition and environment. Micromechanisms operative during fracture under impact and fatigue loading have been presented and discussed.