Hot Corrosion, Phase Stability and Compressive Strength of AlCrFeNiCu-Nb High Entropy Alloy Fabricated via Additive Manufacturing

Abstract:

This work examines the phase stability during hot corrosion and the compressive strength of the AlCrFeNiCu-Nb high entropy alloy (HEA) produced using laser additive manufacturing, emphasizing its prospective uses in energy materials. The alloy's distinctive composition was chosen for its capacity to endure severe environments, including elevated temperatures and corrosive conditions, essential for energy-related applications. Phase stability was evaluated by X-ray diffraction, demonstrating remarkable preservation of critical phases despite high-temperature oxidation exposure. Compressive strength tests revealed the alloy's exceptional mechanical capabilities, underscoring its significant resistance to deformation. The AlCrFeNiCu-Nb HEA demonstrates significant promise for application in rigorous energy sectors, encompassing components for advanced power generation systems, high-temperature reactors, and corrosive conditions inside energy infrastructure.

• Periodical: Solid State Phenomena (Volume 378)
• Pages: 45-51
• DOI: https://doi.org/10.4028/p-qOe3Qo
• Online since: October 2025
• Authors: Lehlogonolo Rudolf Kanyane*, Nicholas Malatji, Mxolisi Brendon Shongwe
• Keywords: Compressive Strength, High Entropy Alloys, Hot Corrosion, Phase Stability

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