Isothermal sections of Cr-Ge-Ti ternary system at 1073 K and 1273 K have been studied through alloy sampling. Results of electron probe microanalysis (EPMA) and X-ray diffraction (XRD) show that there is no ternary compound at these temperatures, and intermetallics Cr3Ge,Cr11Ge8,Ge3Ti5 and Ge5Ti6 possess huge solubility extending along the isoconcentration of Ge, indicating substitution of Ti for Cr in Cr-Ge compounds or of Cr for Ti in Ge-Ti compounds. And the maximum solubility of Cr in Ge5Ti6 at 1073 K is found to be 39.5 at.%. Finally, substitution of Ti by Cr in Ge5Ti6 is confirmed by Rietveld refinement. (C) 2017 Elsevier B.V. All rights reserved.