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Reactively Synthesized Nanostructured PM Aluminium Composite – Microstructure Stability and Elevated Temperature Hardness Response
Author(s) -
Kleiner S.,
Bertocco F.,
Khalid F. A.,
Beffort O.
Publication year - 2005
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.200500047
Subject(s) - materials science , microstructure , aluminium , nanocomposite , annealing (glass) , softening , metallurgy , composite number , indentation hardness , composite material , softening point , consolidation (business) , business , accounting
Reactive synthesis by mechanical alloying and subsequent hot consolidation is an appropriate way to produce an Al‐Al 3 Ti‐Al 2 O 3 nanocomposite from readily available and inexpensive aluminium powder and nanosized TiO 2 . This processing route provides a fine grained and thermally stable microstructure with a controllable amount of dispersoids. The respective material shows a high hardness at room and elevated temperature and does not suffer from softening during long‐term annealing at 250°C. It is therefore considered to be a promising light‐weight material for elevated temperature applications.