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Abstract

This study is aimed at supporting the efforts for developing life prediction methodologies of coated superalloys under thermo-mechanical fatigue (TMF). The present paper illustrates some microstructural changes and the crack propagation observed in CoNiCrAlY coated SRR99 superalloy under different thermo-mechanical fatigue test conditions. The complex microstructure of the interface region is described and the main mechanisms for residual stress relieve are identified and discussed.

Additional information

Authors: SEQUEIRA A D, Departamento de Física do Instituto Tecnológico e Nuclear, Sacavém (PT);VAN OVERVELD M M, Departamento de Física do Instituto Tecnológico e Nuclear, Sacavém (PT);BRESSERS J, JRC Petten (NL)
Bibliographic Reference: Paper presented: FISICA 98, Oporto (PT), September 7-10, 1998
Availability: Available from (1) as Paper EN 41768 ORA
Record Number: 199811385 / Last updated on: 1998-11-10
Category: PUBLICATION
Original language: en
Available languages: en
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