| Issue |
MATEC Web of Conferences
Volume 14, 2014
EUROSUPERALLOYS 2014 – 2nd European Symposium on Superalloys and their Applications
|
|
|---|---|---|
| Article Number | 05001 | |
| Number of page(s) | 6 | |
| Section | Session 5: Native Defects and Precipitates Evolutions in Single Crystal Alloys | |
| DOI | https://doi.org/10.1051/matecconf/20141405001 | |
| Published online | 29 August 2014 | |
Microstructural damage evolution in two Ni based superalloys subjected to different mechanical loading conditions through quantitative EBSD measurements using Cross-Court software
1 Ansaldo Energia S.p.A., Corso Perrone 118, 16161 Genoa, Italy
2 EMPA, Überlandstrasse 129, 8600 Dübendorf, Switzerland
3 Department of Chemistry, University of Genoa, Via Dodecaneso 31, 16146 Genoa, Italy
a Corresponding author: erica.vacchieri@aen.ansaldo.it
Ni based superalloys are adopted as base materials for critical hot gas path components of gas turbines. Knowledge of the evolution of the microstructure is very important for gas turbine producers in order for them to fully predict component behaviour in service. Quantitative EBSD measurements have been performed to evaluate the local strain condition of the material after test on creep and LCF testpieces of two Ni based superalloys. The Cross-Court software has been used to quantitatively analyse EBSD patterns by means of the cross-correlation method developed by Wilkinson et al. The results of the quantitative analyses enable microstructural characterisation to be completed and the mechanisms that describe material property evolution to be better understood. In addition some measurements have been extended to real components after service and the results have been correlated to FE simulations.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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