Abstract
Thermal analysis allows for determination of temperature specific for the beginning and the end of phase transitions occurring
in studied samples. In this paper results obtained from DTA (Differential Thermal Analysis) of alloys of chemical composition
referring to nickel-rich part of Ni-Al-Cr system, specifically from section Ni75Al25÷Ni65Cr35 are presented. Those alloys are
based on intermetallic phase Ni3Al. Referring to measurements obtained during heating and cooling, characteristic peaks related
to occurrence of phase transition of order-disorder type were noted as well as melting and solidification temperature of alloys was
determined. Results of thermal analysis DTA of studied range were compared with results obtained for section Ni75Al25÷Ni75Cr25
and Ni75Al25÷Ni87Cr13, additionally results of measurements performed on high-temperature solution calorimeter were collated.
Both methods presented good compatibility.
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