The Effect of Sc Addition on Microstructure in Mg-Gd Alloys

Yuka Tomuro; Takuya Hamaguchi; Seung Won Lee; Seiji Saikawa; Susumu Ikeno; Kenji Matsuda

doi:10.4028/www.scientific.net/MSF.879.2239

Paper Titles

Effect of Added Elements on Microstructures and Joint Strength of Lead-Free Sn-Based Solder Joint Dispersed IMC Pillar
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Crystallographic Features of the State Appearing in the Multiferroic Material Bi_1-_xLa_xFeO₃ around x = 0.20
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Influence of Grain Size on Work-Hardening Behavior in 12Cr Stainless Steel
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RETRACTED PAPER: Evaluation of Parameters Effect on Microstructure and Mechanical Properties in TIG Welding of A105 to A106 Steels
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The Effect of Sc Addition on Microstructure in Mg-Gd Alloys
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Comparison of Self-Annealing Behaviors in (001)- and (111)-Oriented Electrodeposited Silver Films by In Situ EBSP Analysis
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Effect of Friction Stir Welding on Microstructure of a 5024 Alloy
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Microstructure and Property of Fe-Based Alloy Modified Layer on 304 Stainless Steel by High-Energy Pulse Laser-Like Cladding (HPLC)
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Microstructures and Properties of Aluminum Alloys during Repetitive Continuous Extrusion Forming
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HomeMaterials Science ForumMaterials Science Forum Vol. 879The Effect of Sc Addition on Microstructure in...

The Effect of Sc Addition on Microstructure in Mg-Gd Alloys

Abstract:

Traditionally, Mg-Gd alloys have been strengthened by dispersed precipitates. Several reports are available about Sc addition to Mg alloys for improving a creep resistance. In this research, aging behavior of Mg-Gd, Mg-Sc and Mg-Gd-Sc alloys including the same amount of solute elements were investigated to understand the effect of Sc on microstructures and mechanical properties during aging. Hardness measurement revealed that Sc addition delayed to form precipitate. Close inspection of TEM micrographs, β” phase formed at an initial stage of aging and β’ phase was observed at a peak-aged stage in Mg-Gd and Mg-Gd-Sc alloys. In Mg-Sc alloy, there is no evidence of precipitate formation during aging at 473K.