Exceptional increase in the creep life of magnesium rare-earth alloys due to localized bond stiffening (open access)

Exceptional increase in the creep life of magnesium rare-earth alloys due to localized bond stiffening

Article describes study in which researchers attribute the 600% increase in creep life in a prototypical Mg–rare earth (RE)–Zn alloy to multiple mechanisms caused by RE–Zn bonding—stabilization of a large volume fraction of strengthening precipitates on slip planes, increase in vacancy diffusion barrier, reduction in activated cross-slip, and enhancement of covalent character and bond strength around Zn solutes along the c-axis of Mg using atomic-scale characterization and first principles calculations.
Date: December 8, 2017
Creator: Choudhuri, Deep; Srivilliputhur, Srinivasan; Gibson, Mark A.; Zheng, Yufeng; Jaeger, David L.; Fraser, Hamish L. et al.
System: The UNT Digital Library