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The Effect of Transition Elements on High‐Temperature Mechanical Properties of Al–Si Foundry Alloys–A Review
Author(s) -
Rakhmonov Jovid,
Timelli Giulio,
Bonollo Franco
Publication year - 2016
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201500468
Subject(s) - materials science , ternary operation , microstructure , foundry , metallurgy , transition metal , silicide , silicon , catalysis , biochemistry , chemistry , computer science , programming language
The high temperature mechanical performance of Al–Si alloys can be enhanced by alloying with transition metals, induced by the formation of thermally stable and coarsening resistant precipitates in the microstructure. However, the binary dispersoids such as Al 3 Zr can be less effective due to limitations encountered during conventional manufacturing processes. Further improvements can be achieved through the transformation of these binary trialuminides into ternary or quaternary forms by alloying with appropriate elements. The role of transition elements in improving high temperature mechanical properties of Al–Si alloys from both theoretical and practical viewpoints is critically reviewed.