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Abstract

The present invention relates to a strong-yet-ductile chemically complex alloy over a wide temperature range, including nickel, cobalt, iron, chromium, aluminum, titanium, tantalum, niobium, tungsten, molybdenum, and one or more infinitesimal elements. The strong-yet-ductile chemically complex alloy forms one or more multi-scale L1₂ particles within a grain interior and exhibits serrated grain boundaries via controlling a heat treatment process. The aluminum, titanium, tantalum and niobium facilitate the formation of the one or more multi-scale L1₂ particles, the tungsten and molybdenum enhances a strength of a FCC matrix of the chemically complex alloy, and the one or more infinitesimal elements improve a cohesive strength of the serrated grain boundaries. The present invention has the potential to pave the way for the creation of a range of CCAs exhibiting enhanced strength and ductility across a broad temperature spectrum, achieved by integrating high-density multiscale L1₂ particles and serrated grain boundaries.

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First Claim