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DTA thermal analysis of alloys from nickel-rich part of Ni-Al-Cr system

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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.

Original languageEnglish
Pages (from-to)981-986
Number of pages6
JournalArchives of Metallurgy and Materials
Volume63
Issue number2
DOIs
Publication statusPublished - 2018

Keywords

  • DTA analysis
  • Ni-Al-Cr system
  • Order-disorder

ASJC Scopus subject areas

  • Metals and Alloys

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