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Abstract

The acoustic emission (AE) activity was monitored during the thermo-mechanical fatigue (TMF) testing of Ni-base superalloys, in both single-crystalline and directionally solidified form, coated by a modified aluminide. In-situ monitoring of crack initiation and propagation on the surface of the specimens was also implemented. From the analysis of the AE signals various types of information were obtained, such as:
(I) the effects of the coating on the AE activity.
(2) early surface vs. bulk damage and the subsequent growth of fatigue cracks, respectively. .

Additional information

Authors: VOUGIOUKLAKIS Y, Institute for Advanced Materials, DG-JRC, EC, Petten (NL);HHNER P, Institute for Advanced Materials, DG-JRC, EC, Petten (NL);STAMOS V, Institute for Advanced Materials, DG-JRC, EC, Petten (NL);PETEVES S, Institute for Advanced Materials, DG-JRC, EC, Petten (NL);BRESSERS J, Institute for Advanced Materials, DG-JRC, EC, Petten (NL)
Bibliographic Reference: An oral report given at: Temperature-Fatigue Interaction Conference. Organised by: ESIS, ENSMP. Held in: Paris (FR), 29-31 May 2001
Record Number: 200013515 / Last updated on: 2001-07-25
Category: PUBLICATION
Original language: en
Available languages: en