Al2FeNi

Al₂FeNi is an intermetallic compound combining aluminum, iron, and nickel elements, forming a brittle metallic phase typically found as a constituent in aluminum-iron-nickel alloy systems rather than as a primary engineering material. This compound appears in cast aluminum alloys and specialty high-temperature compositions where it contributes to strengthening mechanisms, though its inherent brittleness and limited ductility restrict standalone structural applications. Engineers encounter Al₂FeNi primarily as a secondary phase in multicomponent alloys used for elevated-temperature service or wear resistance, where the phase's hardness provides property benefits despite requiring careful control during processing to avoid embrittlement.