Print Email Facebook Twitter Modelling the formation and self-healing of creep damage in iron-based alloys Title Modelling the formation and self-healing of creep damage in iron-based alloys Author Versteylen, C.D. (TU Delft RST/Fundamental Aspects of Materials and Energy) Sluiter, M.H.F. (TU Delft (OLD) MSE-7) van Dijk, N.H. (TU Delft RST/Fundamental Aspects of Materials and Energy) Date 2018 Abstract A self-consistent model is applied to predict the creep cavity growth and strain rates in metals from the perspective of self-healing. In this model, the creep cavity growth rate is intricately linked to the strain rate. The self-healing process causes precipitates to grow inside creep cavities. Due to the Kirkendall effect, a diffusional flux of vacancies is induced in the direction away from the creep cavity during this selective self-healing precipitation. This process impedes the creep cavity growth. The critical stress for self-healing can be derived, and an analysis is made of the efficiency of self-healing elements in binary Fe–Cu, Fe–Au, Fe–Mo, and Fe–W alloys. Fe–Au is found to be the most efficient self-healing alloy. Fe–Mo and Fe–W alloys provide good alternatives that have the potential to be employed at high temperatures. To reference this document use: http://resolver.tudelft.nl/uuid:37c49b20-a1f7-4b7b-ba6a-b8f109f0496b DOI https://doi.org/10.1007/s10853-018-2666-9 ISSN 0022-2461 Source Journal of Materials Science, 53 (20), 14758-14773 Part of collection Institutional Repository Document type journal article Rights © 2018 C.D. Versteylen, M.H.F. Sluiter, N.H. van Dijk Files PDF Versteylen2018_Article_Mo ... Self_h.pdf 3.03 MB Close viewer /islandora/object/uuid:37c49b20-a1f7-4b7b-ba6a-b8f109f0496b/datastream/OBJ/view