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RISMaterials for Generator Retaining Rings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Retaining rings are among the highest stressed components of electricial generators, whose integrity is critical to the reliable and safe operation of the generators. The steel currently used ...
Dissimilar Metal Weld and Boiler Creep Damage Evaluation for Plant Life Extension
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The basic causes of dissimilar metal weld (DMW) failures in boilers are now well understood. Guidelines have emerged for achieving significantly improved DMW life, in terms of operational ...
Life Management of High-Temperature Piping and Tubing in Fossil Power Plants
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Aging of power plants and competitive pressures to operate and maintain (O&M) these plants at reduced costs have heightened industry interest in life assessment and management technologies. ...
A Method for Estimation of the Fracture Toughness of CrMoV Rotor Steels Based on Composition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Assessment of the remaining life of steam turbine rotors in the presence of bore defects requires a knowledge of the fracture toughness (KIC ) of the rotors. Current procedures for estimating ...
Small Punch Testing for Determining the Material Toughness of Low Alloy Steel Components in Service
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The toughness of the low alloy ferritic steel material of structural components operating at elevated temperatures can degrade during service due to embrittling phenomena such as carbide coarsening ...
Failure Mechanisms of High Temperature Components in Power Plants
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The principal mechanisms of failure of high temperature components include creep, fatigue, creep-fatigue, and thermal fatigue. In heavy section components, although cracks may initiate and grow ...
Accelerated Stress Rupture Testing for Creep Life Prediction—Its Value and Limitations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Accelerated stress rupture testing has become a common method for determination of the remaining life of in-service components subject to creep damage at elevated temperatures. Stress and temperature ...
2 1/4Cr-1Mo Steels for Coal Conversion Pressure Vessels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Pressure vessels for coal conversion processes are likely to be made of a 2 1/4 Cr-1Mo steel, covered by ASTM specification A387, class 2, grade 22. Under the projected operating conditions, ...
Life Assessment Technology for Combustion Turbine Blades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Combustion turbine blades operating in the hot gas path are subject to degradation by embrittlement, creep, thermal fatigue, hot corrosion, and synergistic effects among the above. Development ...
Toughness of Cr-Mo-V Steels for Steam Turbine Rotors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cr-Mo-V steels are used extensively as the rotor material in the High Pressure and Intermediate Pressure Sections of modern steam turbines. The toughness of these rotors has a major influence ...