Structure and properties of rapidly solidified Mg-Al alloys

• Published in: Journal of materials science Vol. 34; no. 17; pp. 4311 - 4320
• Main Authors: CHO, S. S, CHUN, B. S, WON, C. W, KIM, S. D, LEE, B. S, BAEK, H, SURYANARAYANA, C
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.01.1999; Springer Nature B.V
• Subjects: Applied sciences; Binary alloys; Corrosion resistance; Corrosion resistant alloys; Cross-disciplinary physics: materials science; rheology; Electrochemical analysis; Exact sciences and technology; Extrusion; Ingots; Magnesium base alloys; Materials science; Mechanical properties; Metallurgy; Metals. Metallurgy; Microstructure; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations; Physics; Rapid solidification; Solidification; Tensile strength; Corrosion resistance; Magnesium base alloys; Rapid solidification; Concentration effect; Mechanical properties; Rapidly solidified alloy; Tensile property; Aluminium addition; Aluminium alloy; Hardness; Microstructure; Tensile strength
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1023/A:1004679508915

Three binary Mg-Al alloys containing nominally 5, 15, and 30 at % Al were prepared in the ingot and rapidly solidified flake conditions using the twin roll technique. The microstructure, mechanical properties, and electrochemical behavior of the extruded alloys in both the conditions were investigated. The hardness, tensile strength, and corrosion resistance increased with increasing Al content. Further, the hardness, tensile strength, and corrosion resistance of the rapidly solidified alloys were superior to the ingot-metallurgy alloys and this is attributed to the microstructural refinement and increased homogeneity in the rapidly solidified alloys.