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Law of fracture life for directionally solidified and poly-crystal nickel-base super alloys (CM247LC and IN100) under creep–fatigue conditions based on non-equilibrium science

Law of fracture life for directionally solidified and poly-crystal nickel-base super alloys... Nickel-base super-alloys strengthening by precipitation of γ' phase are used as a heat resistant material in gas turbines for electric power plant and jet engine. They were severely subjected to creep (time dependent mechanism, TD) and strain/stress controlled fatigue conditions (cyclic dependent condition, CD). In this paper, sophisticated investigation and analyses on the load frequency characteristics of fracture life under creep and fatigue conditions were conducted based on catastrophic function for nickel-based super alloys, CM247LC (directionally solidified nickel-base material, DS) and these results were compared with those of IN100 (polycrystalline nickel-base material). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Strength, Fracture and Complexity IOS Press

Law of fracture life for directionally solidified and poly-crystal nickel-base super alloys (CM247LC and IN100) under creep–fatigue conditions based on non-equilibrium science

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Publisher
IOS Press
Copyright
Copyright © 2013 by IOS Press, Inc
ISSN
1567-2069
eISSN
1875-9262
DOI
10.3233/SFC-130154
Publisher site
See Article on Publisher Site

Abstract

Nickel-base super-alloys strengthening by precipitation of γ' phase are used as a heat resistant material in gas turbines for electric power plant and jet engine. They were severely subjected to creep (time dependent mechanism, TD) and strain/stress controlled fatigue conditions (cyclic dependent condition, CD). In this paper, sophisticated investigation and analyses on the load frequency characteristics of fracture life under creep and fatigue conditions were conducted based on catastrophic function for nickel-based super alloys, CM247LC (directionally solidified nickel-base material, DS) and these results were compared with those of IN100 (polycrystalline nickel-base material).

Journal

Strength, Fracture and Complexity – IOS Press

Published: Jan 1, 2013

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