Influence of partial replacement of cerium-rich mischmetal (CeMM) by yttrium on the crystallization and mechanical properties of amorphous Mg80Ni10CeMM10 alloy

Pérez, Pablo, Gonzalez Sanchez, Sergio and Garcés, Gerardo (2007) Influence of partial replacement of cerium-rich mischmetal (CeMM) by yttrium on the crystallization and mechanical properties of amorphous Mg80Ni10CeMM10 alloy. Intermetallics, 15 (3). pp. 315-326. ISSN 0966 9795

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Official URL: http://dx.doi.org/10.1016/j.intermet.2006.07.008

Abstract

The influence on the crystallization and mechanical properties of partial replacement of cerium-rich mischmetal (CeMM) by yttrium in amorphous alloys, whose compositions were close to Mg80Ni10(Y + CeMM)10 (at.%) stoichiometry, has been evaluated. Yttrium addition induces substantial microstructural changes during the crystallization from the amorphous state. The microstructure consisted of a matrix embedding some intermetallic phases, which depend on yttrium and CeMM additions. The matrix is a long period ordered structure for the alloy containing exclusively yttrium whereas the matrix was the intermetallic Mg17RE2 and/or Mg12RE phase for the CeMM-containing alloys. Yttrium improves the mechanical strength of the crystallised alloys once the long period ordered structure is developed.

Item Type: Article
Uncontrolled Keywords: Multiphase intermetallics; Glasses, metallic; Phase transformations; Mechanical properties at ambient temperature; Mechanical properties at high temperatures
Subjects: F200 Materials Science
H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Becky Skoyles
Date Deposited: 10 Nov 2015 15:56
Last Modified: 11 Mar 2016 15:01
URI: http://nrl.northumbria.ac.uk/id/eprint/24399

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