Abstract
The equilibrated grain boundary groove shapes for the Al–Ti peritectic system were directly observed. From the observed grain boundary groove shapes, the Gibbs–Thomson coefficient for solid Al in Al–Ti solution has been determined to be (1.281±0.06)×10 −7 K m with a numerical method. The solid–liquid interface energy for solid Al in Al–Ti solution has been obtained to be (170.72±16.22)×10 −3 J m −2 from the Gibbs–Thomson equation. The grain boundary energy for the same material has been calculated to be (332.01±35.19)×10 −3 J m −2 from the observed grain boundary groove shapes.
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