The Reliability and Progress of Life prediction Methods for High Temperature Pressure Pipes in Thermal Power Plants

CAI Qing-mu; LIU Yue-ming; HUANG Chang-qing; LOU jun; TIAN Wei-jian

Materials and Mechanical Engineering > 2012 > 36(12): 5-9.

CAI Qing-mu, LIU Yue-ming, HUANG Chang-qing, LOU jun, TIAN Wei-jian. The Reliability and Progress of Life prediction Methods for High Temperature Pressure Pipes in Thermal Power Plants[J]. Materials and Mechanical Engineering, 2012, 36(12): 5-9.

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The Reliability and Progress of Life prediction Methods for High Temperature Pressure Pipes in Thermal Power Plants

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Received Date: August 15, 2012

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Abstract

Several current life prediction methods and models for high temperature pressure pipes in thermal power plants were introduced, including persistent strength method, time parameter exptrapolation method,θ method and θ method of amendment, gradual extrapolation method based on creep curves and creep damage method. The reliability of these methods was deeply discussed. Then application conditions and brief commentaries to these methods were given. Finally, several technical problems about life prediction of the high temperature pressure pipes were analyzed and predicted.
- high temperature pressure pipeline,
- life prediction,
- creep damage,
- reliablity

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