High-temperature strength sustained by nano-sized eutectic structure of Al–Fe alloy manufactured by laser powder bed fusion

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 838; p. 142782
• Main Authors: Wang, Wenyuan, Takata, Naoki, Suzuki, Asuka, Kobashi, Makoto, Kato, Masaki
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 24-03-2022; Elsevier BV
• Subjects: Additive manufacturing; Alloys; Aluminum alloy; Binary alloys; Cellular structure; Compression test; Eutectic structure; Ferrous alloys; Heat resistant alloys; High temperature; Iron; Laser powder bed fusion; Powder beds; Laser powder bed fusion; Additive manufacturing; Eutectic structure; Compression test; Aluminum alloy
• ISSN: 0921-5093; 1873-4936
• DOI: 10.1016/j.msea.2022.142782

This study investigated the high-temperature strength of a hypereutectic Al–Fe binary alloy (Al–15%Fe) additive-manufactured by laser powder bed fusion (L-PBF). The L-PBF Al–15%Fe alloy exhibited superior yield strength to the other existing L-PBF processed alloys due to α-Al/Al6Fe eutectic structure with a nanoscale cellular morphology. The present results demonstrated the feasibility of using L-PBF processed Al–Fe alloys as high-temperature lightweight materials.
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