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.
This 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.
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.
The investigation is part of the collaborative project ENER/FP7EN/249809/MACPLUS, funded by the EU within the FP7 framework.