A POSSIBLE ROUTE TO IMPROVING THE DUCTILITY OF BRITTLE INTERMETALLIC COMPOUNDS

Authors
Citation
Tj. Davies et Aa. Ogwu, A POSSIBLE ROUTE TO IMPROVING THE DUCTILITY OF BRITTLE INTERMETALLIC COMPOUNDS, Journal of alloys and compounds, 228(1), 1995, pp. 105-111
Citations number
29
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
ISSN journal
09258388
Volume
228
Issue
1
Year of publication
1995
Pages
105 - 111
Database
ISI
SICI code
0925-8388(1995)228:1<105:APRTIT>2.0.ZU;2-Y
Abstract
Efforts to achieve ductility in a certain class of intermetallic compo unds are described in terms of the experimental work performed and the empirical and quantitative quantum mechanical models used to achieve crystal structures likely to satisfy the Von Mises condition for plast icity. However, the current trend in the behaviour of these intermetal lic compounds indicates that an underpinning electronic state requirem ent must be satisfied together with the Von Mises criterion for improv ed ductility to become achievable. It is suggested that a detailed und erstanding of this electronic factor may provide a way to improve the ductility via processes involving an alteration of the equilibrium ele ctron distribution in some intermetallic compounds, possibly through t he electroplastic effect.