Abstract
The failure of high temperature alloys exposed to a carburizing gas atmosphere due to metal dusting corrosion was studied. A coupled model of the solid subjected to mechano-diffusional stresses was developed. For an interface crack between the protective film and the alloy substrate under an applied diffusion stress, the J-integral for film spallation was determined. The effects of interface crack length, film thickness and film mechanical properties on the J-integral (that is, the energy release rate) for spallation were investigated. Finally, comparisons of calculated J-integral values and experimental results are given and discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 263-269 |
| Number of pages | 7 |
| Journal | Materials and Design |
| Volume | 119 |
| DOIs | |
| Publication status | Published - 5 Apr 2017 |
| Externally published | Yes |
Keywords
- Diffusion stress
- Interface crack
- J-integral
- Metal dusting corrosion
- Protective layer
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering