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Super long-term creep tests of advanced HP and IP rotor steels

Abstract

A creep model has been developed for predicting the long-term creep behavior, in excess of 200,000 h for advanced materials.The new creep theory is based on a continuum microdamage model and is used to calculate the fields of stress and strain and wedge and cavities damage in critical components of steam and gas turbines. The application of this new model increases the reliability and service life of modern turbines. The accuracy of the model to predict long - term creep behavior, creep ductility was verified using the data bank of super long-term creep tests of advanced materials. (orig.) 12 refs.
Authors:
Tchizhik, A A [1] 
  1. The Polzunov Central Boiler and Turbine Institute, Department the Fatigue Life of Materials for Power Plans Equipment, St. Petersburg (Russian Federation)
Publication Date:
Dec 31, 1998
Product Type:
Conference
Report Number:
VTT-SYMP-184(v.1); CONF-980999-
Reference Number:
SCA: 360103; 200104; PA: FI-99:003050; EDB-99:036263; SN: 99002064664
Resource Relation:
Conference: 4. Baltica seminar on plant maintenance for managing life and performance, Helsinki (Finland), 7-9 Sep 1998; Other Information: PBD: 1998; Related Information: Is Part Of BALTICA IV. Plant maintenance for managing life and performance; Hietanen, S.; Auerkari, P. [eds.] [VTT Manufacturing Technology, Espoo (Finland). Operational Reliability]; PB: 332 p.
Subject:
36 MATERIALS SCIENCE; 20 FOSSIL-FUELED POWER PLANTS; STEAM TURBINES; ROTORS; CHROMIUM-MOLYBDENUM STEELS; VANADIUM ADDITIONS; CREEP; MECHANICAL TESTS; SERVICE LIFE; RELIABILITY; MATHEMATICAL MODELS; FRACTURE PROPERTIES; TIME DEPENDENCE; TEMPERATURE RANGE 0400-1000 K
OSTI ID:
324958
Research Organizations:
Technical Research Centre of Finland, Espoo (Finland)
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
Other: ON: DE99730862; ISBN 951-38-4577-X; TRN: FI9903050
Availability:
OSTI as DE99730862
Submitting Site:
FI
Size:
pp. 163-174
Announcement Date:
Apr 05, 1999

Citation Formats

Tchizhik, A A. Super long-term creep tests of advanced HP and IP rotor steels. Finland: N. p., 1998. Web.
Tchizhik, A A. Super long-term creep tests of advanced HP and IP rotor steels. Finland.
Tchizhik, A A. 1998. "Super long-term creep tests of advanced HP and IP rotor steels." Finland.
@misc{etde_324958,
title = {Super long-term creep tests of advanced HP and IP rotor steels}
author = {Tchizhik, A A}
abstractNote = {A creep model has been developed for predicting the long-term creep behavior, in excess of 200,000 h for advanced materials.The new creep theory is based on a continuum microdamage model and is used to calculate the fields of stress and strain and wedge and cavities damage in critical components of steam and gas turbines. The application of this new model increases the reliability and service life of modern turbines. The accuracy of the model to predict long - term creep behavior, creep ductility was verified using the data bank of super long-term creep tests of advanced materials. (orig.) 12 refs.}
place = {Finland}
year = {1998}
month = {Dec}
}