Devitrification of rapidly solidified amorphous Mg–Ni–Y–LaMM ribbons

Gonzalez Sanchez, Sergio, Pérez, Pablo, Garcés, Gerardo and Adeva, Paloma (2010) Devitrification of rapidly solidified amorphous Mg–Ni–Y–LaMM ribbons. Intermetallics, 18 (4). pp. 710-718. ISSN 0966 9795

Full text not available from this repository. (Request a copy)
Official URL: http://dx.doi.org/10.1016/j.intermet.2009.11.011

Abstract

The influence of nickel, yttrium and La-rich mischmetal additions on the stability and the nature of the crystalline phases formed during continuous heating of amorphous Mg–Ni–Y–MM alloys has been evaluated. The stability of the amorphous matrix is increased with increasing the content of the different alloying elements, especially yttrium and rare earth additions. All alloys exhibit at least one atomic rearrangement in their amorphous structure prior to crystallisation, which can be rationalised in terms of the development of medium range order zones of crystalline phases, mainly Mg17RE2 and Mg6Ni. Once Mg17RE2 crystallisation starts, the surrounding amorphous regions become enriched in nickel and yttrium, stabilising the remnant amorphous phase at higher temperatures. The composition of the remnant amorphous phase determines the nature of the phases crystallised in subsequent transformations.

Item Type: Article
Uncontrolled Keywords: Multiphase intermetallics; Glasses, metallic; Phase transformations; Rapid solidification processing
Subjects: F200 Materials Science
H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Becky Skoyles
Date Deposited: 09 Nov 2015 16:16
Last Modified: 10 Mar 2016 11:58
URI: http://nrl.northumbria.ac.uk/id/eprint/24378

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics


Policies: NRL Policies | NRL University Deposit Policy | NRL Deposit Licence