Formation and thermal stability of two-phase microstructures in Al-containing refractory compositionally complex alloys

• Published in: Science and technology of advanced materials Vol. 23; no. 1; pp. 692 - 706
• Main Authors: Laube, Stephan, Kauffmann, Alexander, Schellert, Steven, Seils, Sascha, Tirunilai, Aditya Srinivasan, Greiner, Christian, Eggeler, Yolita M., Gorr, Bronislava, Christ, Hans-Juergen, Heilmaier, Martin
• Format: Journal Article
• Language: English
• Published: United States Taylor & Francis 31.12.2022; Taylor & Francis Ltd; Taylor & Francis Group
• Subjects: Annealing; atom probe tomography; Chemical composition; Chromium; decomposition; Focus on Advances in High Entropy Alloys; Intermetallic phases; Microstructure; Molybdenum; Nucleation; nucleation and growth; Phase separation; Precipitates; Refractory alloys; Refractory compositionally complex alloys; refractory high entropy alloys; Ripening; separation; Spinodal decomposition; Thermal stability; Titanium; transmission electron microscopy; Refractory compositionally complex alloys; separation; refractory high entropy alloys; decomposition; transmission electron microscopy; nucleation and growth; atom probe tomography

Phase separation into an A2+B2 two-phase microstructure in refractory compositionally complex alloys (RCCA) has been speculated as being spinodal in nature with continuous chemical distribution during the separation. However, these reactions might instead occur as precipitation by nucleation and gro...