Title of article
Short range order and phase separation in Ti–Al alloys
Author/Authors
Wood، نويسنده , , H. and Smith، نويسنده , , G.D.W. and Cerezo، نويسنده , , A.، نويسنده ,
Pages
5
From page
83
To page
87
Abstract
The phase decomposition mechanism operating in binary Ti–Al alloys in the two phase α+α2 region has been investigated. A Ti–15at.%Al alloy was aged in the range 450–750°C for various time periods. The resulting microstructures were studied by transmission electron microscopy (TEM) and atom probe field ion microscopy (APFIM). Computer simulations of phase separation in this alloy were also carried out using a dynamic Ising model. Results from the computer simulations suggest decomposition occurs via a conditional spinodal route, whereby compositional phase separation is contingent upon prior ordering of the matrix. Experimental studies to date are fully consistent with this mechanism.
Keywords
Short range order , Phase separation , Ti–Al alloys
Journal title
Astroparticle Physics
Record number
2053608
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