Strengthening retention and structural stability of the Al-Al3Ni eutectic at high temperatures

Review Materials Science, Multidisciplinary

Five decades of research on the development of eutectic as engineering materials

Chandra Sekhar Tiwary et al.

Summary: Eutectic alloys, particularly in the development of complex microstructures, show promise for being used as high-strength structural materials in engineering applications. The emergence of ultrafine eutectics and multiscale variation highlights their potential for future use in high-temperature applications.

PROGRESS IN MATERIALS SCIENCE (2022)

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Article Materials Science, Multidisciplinary

Effect of Mn on Microstructure and Mechanical Properties of Al-4Ni Alloy

Jiao Fang et al.

Summary: This study found that the addition of Mn can enhance the tensile strength of Al-Ni alloys, especially at high temperatures, and the eutectic phase Al-9(Ni,Mn)2 exhibits good thermal stability.

JOM (2021)

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Article Materials Science, Multidisciplinary

Particle-stimulated nucleation and recrystallization texture initiated by coarsened Al2CuLi phase in Al-Cu-Li alloy

Xiao-Ya Wang et al.

Summary: The PSN triggered by coarsened T-1 phase in Al-Cu-Li alloys leads to the rotation of matrix units separated by T-1 precipitates, resulting in a strong <001> fiber texture during recrystallization. This mechanism facilitates obtaining textured and refined structures in the alloys, improving the performance of fabricated components.

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T (2021)

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Article Nanoscience & Nanotechnology

A high-strength heat-resistant Al-5.7Ni eutectic alloy with spherical Al3Ni nano-particles by selective laser melting

Junwang Deng et al.

Summary: This paper explores high-strength heat-resistant aluminum alloys by using Al-5.7Ni alloy in additive manufacturing, successfully mitigating crack formation tendency by slowing down the solidification range. The alloy shows excellent mechanical properties, mainly attributed to dispersion strengthening from Al3Ni nano-particles with superior thermal stability.

SCRIPTA MATERIALIA (2021)

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Article Materials Science, Multidisciplinary

Thermal Stability of Aluminum-Nickel Binary Alloys Containing the Al-Al3Ni Eutectic

Frank Czerwinski

Summary: Al-Ni binary alloys containing Al3Ni eutectic and proeutectic phases showed the capability to retain strength at high temperatures, with the contribution of Al3Ni phases decreasing as temperature increased, especially above 300 degrees C. The finer Al3Ni eutectic phase was found to be more effective in strengthening the alloy compared to the coarser Al3Ni proeutectic phase, which lost its influence completely above 300 degrees C.

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2021)

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Article Materials Science, Multidisciplinary

A search for the eutectic system of high-temperature cast aluminium alloys

Frank Czerwinski

Summary: The research indicates that the novel cast aluminium eutectic systems of Al-Al3Ni and Al-Al11Ce3 do not show significant advantages over the traditional Al-Si base at high temperatures up to 500 degrees C. While there are differences in diffusivities of silicon, nickel, and cerium in aluminium, as well as eutectic melting temperatures and coarsening resistance of Al3Ni and Al11Ce3 phases, the observed similarities in temperature-related strengthening-reduction across all three eutectics highlight the need for further development criteria for heat-resistant aluminium alloys.

MATERIALS SCIENCE AND TECHNOLOGY (2021)

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Article Materials Science, Multidisciplinary