Calorimetric data of liquid Cu-Mg-Ti alloys

Since limited information is available in the literature regarding the thermodynamic properties of the Cu-Mg-Ti system, this work aims to determine the mixing enthalpy change for several liquid alloys from this system. To achieve the intended purpose, the methods used were divided into two phases. The first covered the high-temperature calorimetric measurement of enthalpy of mixing performed at 1123 K – 1402 K for liquid solutions in six measurement series (A-F).The obtained calorimetric results for the integral molar mixing enthalpy change show a negative deviation from ideal solutions over the entire concentration measurement range. The presented results enhance the existing knowledge concerning thermodynamic properties of the Cu-Mg-Ti system.The provided data set contains the results of the experimental part of the article, included in Appendix A of the article:•          .txt files with column headers Index Time (h) Furnace Temperature (°C) Sample Temperature (°C) Heat Flow (µV) contain calorimetric data of the mixing enthalpy change measurement for liquid Cu-Mg-Ti alloys.This work is supported by the National Science Centre, Poland, for funding project no. 2021/43/O/ST8/01291 entitled “Thermodynamic properties and structure of Cu-Mg-Ti and Ag-Mg-Ti alloys and their potential to interact with hydrogen” in the years 2022–2027.