Excellent strength–ductility balance of Sc-Zr-modified Al–Mg alloy by tuning bimodal microstructure via hatch spacing in laser powder bed fusion

Yusufu Ekubaru,Ozkan Gokcekaya,Takuya Ishimoto,Kazuhisa Sato, Koki Manabe,Pan Wang,Takayoshi Nakano

Materials & Design（2022）

Cited 9|Views15

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Abstract

•Microstructural control utilizing bimodal feature unique to LPBF-built Scalmalloy.•Decreasing track-to-track interval increases the volume fraction of fine grains.•The increased volume fraction of fine grains resulted in increased strength.•The resulting product exhibited an excellent strength-ductility balance.

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Key words

Scalmalloy,Laser powder bed fusion,Ultrafine grain,Hatch spacing,Melt pool,Precipitation

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