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Journal of Materials Engineering and Performance

Erschienen in:

01.04.2013

Influences of Y and Y-Rich Mischmetal Additions on Microstructure and Compressive Properties of As-Cast Al-Mg-Mn Alloy

verfasst von: Daqing Fang, Guangli Bi, Jing Jiang, Qiuming Peng, Zhonghao Jiang, Xiaoru Zhang, Yaxu Jin, Yuesheng Chai, Daidong Zhang

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 4/2013

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Abstract

The influences of Y and Y-rich mischmetal (Ym) additions on microstructural and compressive properties of as-cast Al-13Mg-0.8Mn alloy prepared by vacuum suction casting were investigated in this study. The average secondary dendrite arm spacing (SDAS) was decreased when adding Y and Ym additions. Moreover, the Al₂Y and Al₂Ym phases formed during the solidification were mainly distributed along the grain boundary. The mechanical results reveal that both Y and Ym additions are effective in increasing the compressive strength and hardness. The values of yield compressive strength, ultimate compressive strength, and Brinell hardness of the as-cast Al-13Mg-0.8Mn-0.8Y alloy are 357 MPa, 510 MPa, and 138, respectively. The improved mechanical properties are mainly attributed to fine SDAS and precipitation strengthening. A typical cleavage fracture mode is observed on the compressive fracture surfaces of the alloys.

Vorheriger Artikel Microstructure and Properties of Cast B-Bearing High Speed Steel

Nächster Artikel Erratum to: Modeling the Effect of Carburization and Quenching on the Development of Residual Stresses and Bending Fatigue Resistance of Steel Gears

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Titel: Influences of Y and Y-Rich Mischmetal Additions on Microstructure and Compressive Properties of As-Cast Al-Mg-Mn Alloy
verfasst von: Daqing Fang
Guangli Bi
Jing Jiang
Qiuming Peng
Zhonghao Jiang
Xiaoru Zhang
Yaxu Jin
Yuesheng Chai
Daidong Zhang
Publikationsdatum: 01.04.2013
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 4/2013
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-012-0394-x

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