UNDER THE SEA

This is a SEM (Scanning Electron Microscope) image of novel AlCrFeNiNb_0.3 high entropy alloy showing complex microstructure. High entropy alloys (HEA) present novel metallurgical approach. Instead of commonly used alloying of one major constituent, in HEAs – 4-6 principal elements are used with a concentration of 5¸35at.% yielding a solid solution. The AlCrFeNiNb_0.3 HEA solidifies dendritically and The image shows both the dendrite and the interdendrite regions.