Experimental and thermodynamic study of the role of titanium in the microstructural and thermal properties of cast Ni–Cr–C–Ti alloys. (March 2017)

• Record Type: Journal Article
• Authors: Berthod, Patrice; Kretz, Estelle; Allègre, Floriane
• Is Part Of: Calphad. Volume 56(2017)
• Page Start: 41
• Page End: 48
• Publication Date: 2017-03
• Subjects: Nickel–chromium alloys -- Carbides -- Titanium -- High temperature exposure -- Microstructures -- Thermodynamic modeling; Phase diagrams -- Data processing -- Periodicals; Thermochemistry -- Data processing -- Periodicals; Diagrammes de phases -- Informatique -- Périodiques; Thermochimie -- Informatique -- Périodiques; Thermodynamica; Electronic journals; 541.363
• DOI: 10.1016/j.calphad.2016.11.008
• Languages: English
• ISSNs: 0364-5916

Abstract

Abstract: Three compositions of the {Ni–25Cr–0.25 or 0.50C–1 or 2Ti}-type were studied by thermodynamic calculations for anticipating their melting temperature ranges and their microstructures at 1200 °C. In parallel the corresponding alloys were synthesized by classical foundry and subjected to Differential Thermal Analysis and exposures at 1200 °C followed by metallographic characterization. Calculations and experiments are globally consistent concerning the melting range temperatures, the microstructures in the as-cast state and after aging at 1200 °C. Good agreement was also found concerning the carbides fractions and the matrixes' chemical compositions.