Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10655632 | Intermetallics | 2005 | 7 Pages |
Abstract
Single crystal specimens of YCu with the B2-type crystal structure were tested in tension and in compression, and the isostructural single crystal specimens of B2 (Tb0.88Dy0.12)Zn were tested in tension. The YCu tensile specimens elongated several percent before fracture. The active slip systems in YCu in tension were found to be {100}ã010ã (ÏCRSS=17Â MPa) and {110}ã010ã (ÏCRSS=18Â MPa). Specimens of single crystal YCu were compression tested with the ã100ã direction as the compression axis, an orientation that puts no resolved shear stress on either the {100}ã010ã or the {110}ã010ã. These compression tests resulted in high yield stresses followed by what is believed to be a stress-induced transformation to another crystallographic structure of YCu, the B27-type crystal structure. All specimens of (Tb0.88Dy0.12)Zn failed by brittle fracture.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
A.M. Russell, Z. Zhang, K.A. Jr., T.A. Lograsso, A.O. Pecharsky, A.J. Slager, D.C. Kesse,