These files provide the raw data for the paper by Jones et al. entitled “Phase evolution in an Al0.5CrFeCoNiCu High Entropy Alloy” (DOI: 10.1016/j.intermet.2015.12.001) Figure1.jpg - original image file for Figure 1as presented in the paper Figure2.zip - folder containing Figure 2 as presented in the paper and larger versions of each sub figure Figure3.zip - folder containing Figure 3 as presented in the paper along with the original EDX elemental distribution maps and corresponding secondary electron image Figure4.jpg - original image file for Figure 4 as presented in the paper Figure5.jpg - original image file for Figure 5 as presented in the paper Figure6.zip - folder containing Figure 6 as presented in the paper plus four comma separated variable (.csv) files with the raw X-ray diffraction data expressed as angle and intensity for the homogenised material and or material aged at 700, 800 and 900˚C. Figure7.zip - folder containing Figure 7 as presented in the paper and the underlying raw differential scanning calorimeter data in comma separated variable (.csv) format Figure8.jpg - original image file for Figure 5 as presented in the paper