LAUSR.org creates dashboard-style pages of related content for over 1.5 million academic articles. Sign Up to like articles & get recommendations!

Effects of substitution of Nd in a sand-cast Mg-2.5Nd-0.6Zn-0.5Zr alloy with x wt.% Sm (x = 2.5, 4, and 6)

Photo from archive.org

Abstract The microstructures and mechanical properties of a series of sand-cast Mg-Sm-Zn-Zr alloys under as-cast, solution-treated and peak-aged states were thoroughly investigated. The OM, XRD, SEM and HRTEM were employed… Click to show full abstract

Abstract The microstructures and mechanical properties of a series of sand-cast Mg-Sm-Zn-Zr alloys under as-cast, solution-treated and peak-aged states were thoroughly investigated. The OM, XRD, SEM and HRTEM were employed to characterize the microstructural evolution. The results indicate that substitution Nd in the conventional Mg-2.5Nd-0.6Zn-0.5Zr alloy with different contents of Sm has comparative grain refinement effect and will fully change the dominant intermetallic phase. In addition, the substituted alloys perform clearly higher strength with comparative ductility at both as-cast and peak-aged conditions and much greater aging hardening response than the referential alloy. It is obvious that the strength increments of this alloy are attributed to the changes of the eutectic intermetallic particles on grain boundaries.

Keywords: sand cast; alloy; 5nd 6zn; 5zr alloy; 6zn 5zr

Journal Title: Journal of Rare Earths
Year Published: 2017

Link to full text (if available)


Share on Social Media:                               Sign Up to like & get
recommendations!

Related content

More Information              News              Social Media              Video              Recommended



                Click one of the above tabs to view related content.