740H and 740 Modelling paper_repositry.pdf (708.38 kB)
Modelling of creep and fracture properties of nickel based alloys
journal contribution
posted on 2017-09-15, 10:35 authored by Roy G. Faulkner, S. Vujic, Fabio Di Martino, Simon HoggSimon HoggThis paper reviews the differences between two nickel based alloys, Alloy 740 and Alloy 740H. Microstructural evolution models are used to forecast the changes in volume fraction and interparticle spacing of both grain boundary and intra-granular precipitates in the alloys. These data are then employed in continuum damage mechanics models to forecast creep curves, and in fracture mechanics models to forecast Charpy impact energies/energy. The results reveal the key microstructural features that control secondary and tertiary creep rate as well as the time dependence of Charpy impact energy after high temperature exposure.
Funding
The investigation is part of the collaborative project ENER/FP7EN/249809/MACPLUS, funded by the EU within the FP7 framework.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Published in
Materials Science and TechnologyPages
1 - 8Citation
FAULKNER, R.G. ... et al, 2016. Modelling of creep and fracture properties of nickel based alloys. Materials Science and Technology, 33 (1), pp. 121-128.Publisher
Taylor & Francis © Institute of Materials, Minerals and MiningVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2016-03-02Publication date
2016Notes
This is an Accepted Manuscript of an article published by Taylor & Francis in Materials Science and Technology on 4 May 2016, available online: http://www.tandfonline.com/10.1080/02670836.2016.1164959.ISSN
0267-0836eISSN
1743-2847Publisher version
Language
- en
