Measurements of the coefficient of thermal expansion (CTE) of NiAlMo alloys and comparison with modelling predictions

A comparison between the experimentally determined coefficient of thermal expansion (CTE) of two NiAlMo alloys with predictions based on the BFS method for alloys is introduced. An additional phase characterization of the NiAlMo alloys was also carried out for an optimisation of the parameters needed for the atomistic modelling calculations. The BFS method appears to provide a reliable path for the assessment of the NiAlMo CTE trends for the whole ternary diagram, taking NiAl as the reference alloy.