Paper Title:
Oxide Spallation in Beta-NiAl Coated Systems under Mechanicalloading
  Abstract

Thermally grown oxide (TGO) spallation increases the degradation rate of aluminide protective coatings during thermomechanical cycling. Thermal expansion misfit between TGO, bond coat and substrate, applied mechanical load in the system, and local instabilities are known triggers for spallation. Mechanical tests have been performed on coated and oxidised AM1 superalloy. In situ and post mortem study including digital image analysis and SEM were performed in order to characterise strain fields and associated damage field. Good correlation is found between oxide strain and damage extent.

  Info
Periodical
Materials Science Forum (Volumes 595-598)
Edited by
Pierre Steinmetz, Ian G. Wright, Alain Galerie, Daniel Monceau and Stéphane Mathieu
Pages
101-106
DOI
10.4028/www.scientific.net/MSF.595-598.101
Citation
M. Harvey, M. Rambaudon, V. Maurel, L. Rémy, "Oxide Spallation in Beta-NiAl Coated Systems under Mechanicalloading ", Materials Science Forum, Vols. 595-598, pp. 101-106, 2008
Online since
September 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Rabindra Mahapatra, A.W. Davis
Abstract:In this paper we report the oxidation behavior of Rh-xTi (x = 15 & 20 atomic percent) alloys isothermally exposed in air between 1000 and...
721
Authors: Gérard Moulin, Rania El Tahhan, Jérôme Favergeon, Michel Viennot, Pascal Berger
Abstract:In order to study the nucleation and growth of cracks in the outer oxide scale which expand into the underlying alloy, deformation in creep...
425
Authors: Xu Dong Lu, Ce An Guo, Jie Wang, Shu Wu Ma
Chapter 1: Metal Materials
Abstract:The cyclic oxidation behaviour of Ni 5.5Al 2.6Ti 4.8Co 3.9Mo 5.0W 11.0Cr superalloy at 900 °C in air has been investigated by means of...
51
Authors: Xiang Long Yu, Dong Bin Wei, Xiao Dong Wang, Zheng Yi Jiang
Chapter 3: Materials Forming
Abstract:An experimental method was developed to study the adherence properties of the oxide scale formed on microalloyed low carbon steel after hot...
622
Authors: Peng Song, Jian Sheng Lu
Chapter 2: Material Science, Materials Processing and Manufacturing Processes Technology
Abstract:Pt-modified nickel aluminide coatings have been more widely used for protection of jet-engine components against high-temperature oxidation....
383