Processing, microstructure and properties of Al0.6CoNiFeTi0.4 high entropy alloy with nanoscale twins

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 565; pp. 439 - 444
• Main Authors: Chen, Weiping, Fu, Zhiqiang, Fang, Sicong, Wang, Yanping, Xiao, Huaqiang, Zhu, Dezhi
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 10.03.2013; Elsevier
• Subjects: Applied sciences; Condensed matter: structure, mechanical and thermal properties; Defects and impurities in crystals; microstructure; Elasticity, elastic constants; Exact sciences and technology; Grain and twin boundaries; High entropy alloys; Mechanical alloying; Mechanical and acoustical properties of condensed matter; Mechanical properties of nanoscale materials; Mechanical properties of solids; Metals. Metallurgy; Nanoscale twins; Physics; Powder metallurgy. Composite materials; Production techniques; Spark plasma sintering; Structure of solids and liquids; crystallography; Technology; High entropy alloys; Spark plasma sintering; Nanoscale twins; Mechanical alloying; high entropy alloy; Crystal twin; Vickers hardness; FCC lattices; Material processing; Elasticity; Mechanical properties; Fracture; Twinning; Nanostructure; Crystal defect; Intergranular fracture; Nanometer scale; Compressive stress; BCC lattices; Yield strength; Elastic properties; Microstructure; Yield stress

Al0.6CoNiFeTi0.4 high entropy alloy was synthesized by mechanical alloying (MA) and spark plasma sintering (SPS). Only a FCC structure phase during MA was observed, while an ordered BCC phase and a FCC phase after SPS. The ordered BCC phase was much finer than the FCC phase after SPS. Moreover, twin...