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Combined fatigue experimental study of fir-tree mortises on light/serious corrosive turbine disc at elevated temperature

  • Peking University

Research output: Contribution to journalArticlepeer-review

Abstract

By using a new low and high cycle noninterfering loading method, a experimental system of Low and High Cycle Combined Fatigue (L-HCCF) at elevated temperature was established. Through the real-time crack detection of the first tooth, the crack propagation law of fir-tree mortise was obtained. Then, under two vibration frequencies (50 Hz and 100 Hz), the contrast fatigue life experiment of light and serious corrosive disc mortise was done. The experimental results which can be used to draw up the corrosive scrapped criterion of this disc show that the experimental L-HCCF life of serious corrosive disc is less than that of light's and its dispersion is larger.

Original languageEnglish
Pages (from-to)110-114
Number of pages5
JournalJournal of the University of Petroleum, China (Natural Science Edition)
Volume22
Issue number5
StatePublished - 1998
Externally publishedYes

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