Characterization of phases in a Mg-6Gd-4Sm-0.4Zr (wt.%) alloy during solution treatment

Journal Article · Mon Jun 15 04:00:00 EDT 2009 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2009.01.002· OSTI ID:22066101

Zhenyan, Zhang ^[1]; Xiaoqin, Zeng; Penghuai, Fu; Wenjiang, Ding ^[1]

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1. National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China)

Phases in as-cast and solution-treated Mg-6Gd-4Sm-0.4Zr (wt.%) alloy have been characterized using transmission electron microscopy in this paper. The intermetallic phase in as-cast microstructure has a face centered cubic crystal structure (a = 2.2879 nm) with a composition of Mg{sub 6.2}(Sm{sub 0.56}Gd{sub 0.44}) and was dissolved after solution treatment. A particulate phase with a face centered cubic crystal structure (a = 0.5502 nm) was found in the solution-treated microstructure and suggested to already exist in as-cast sample as the nucleus for its further growth during solution treatment.

• OSTI ID: 22066101
• Journal Information: Materials Characterization, Journal Name: Materials Characterization Journal Issue: 6 Vol. 60; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTAL GROWTH
FCC LATTICES
GADOLINIUM ALLOYS
MAGNESIUM BASE ALLOYS
MICROSTRUCTURE
PHASE STABILITY
PHASE STUDIES
SAMARIUM ALLOYS
SCANNING ELECTRON MICROSCOPY
SOLID SOLUTIONS
TRANSMISSION ELECTRON MICROSCOPY
ZIRCONIUM ADDITIONS