A model for eutectic growth of multicomponent alloys is proposed. Among several other modifications brought to the classic theory of eutectic growth, the model introduces the phase fraction change as the main mechanism for maintaining an isothermal solid/liquid interface during solidification of eutectic alloys. A comparison between the theoretical results and experimental measurements for the Fe-C based alloys showed a good agreement for alloys of composition not too far removed from the eutectic point. The analysis also showed that an earlier proposed criterion for spacing selection of binary irregular eutectics, based on volume fraction of the faceted phase, can be applied to multicomponent alloys as well. The investigation performed on the effect of Si on the growth kinetics of Fe-C-Si eutectic alloys showed that the growth coefficient μ decreases with the increase of Si content.
|Original language||English (US)|
|Journal||IOP Conference Series: Materials Science and Engineering|
|State||Published - Jun 11 2015|
|Event||14th International Conference on Modeling of Casting, Welding and Advanced Solidification Processes, MCWASP 2015 - Awaji Island, Hyogo, Japan|
Duration: Jun 21 2015 → Jun 26 2015
ASJC Scopus subject areas
- Materials Science(all)