Microstructure and mechanical properties of the Dy-50(Cu50-xNix) intermetallic B2CsCl-type compounds

TitleMicrostructure and mechanical properties of the Dy-50(Cu50-xNix) intermetallic B2CsCl-type compounds
Publication TypeJournal Article
Year of Publication2008
AuthorsXie S, Gschneidner KA, Russell AM
Journal TitleScripta Materialia
Volume59
Pages810-813
Date Published10/01
Type of ArticleArticle
ISBN Number1359-6462
Accession NumberISI:000259047100003
Keywordsalloys, composites, compressive strength, Dy-Cu-Ni alloy, fracture, fracture-toughness, INTERMETALLIC COMPOUND, tensile strength, yag
Abstract

The effects of Ni substitution for Cu in Dy50Cu50 on its structure and mechanical properties were investigated. Dy50Cu45Ni5 was single phase and Dy50Cu40Ni10 contained the B27 structure as a second phase. Transmission electron microscopy showed that the orientation relationship between B2 DyCu(Ni) and B27 DyNi(Cu) phases is (1 2 1)(B2)//(0 2 0)(B27). Dy50Cu45Ni5 exhibits a similar tensile ductility as Dy50Cu50 and a higher strength, and a compression ductility somewhat less than Dy50Cu50 with a higher compressive strength. Dy50Cu40N10 has little plasticity. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

DOI10.1016/j.scriptamat.2008.06.025
Alternate JournalScr. Mater.