The splitting behavior of γ′ particles in Ni-based alloys

The splitting behaviour of γ′ particles (ordered L1 2 phase, Ni 3Al) has been investigated in a Ni–Al alloy aged at 1273 K and 1413 K. It was found that the particles were initially cubic and then they split through different paths to octets (eight sub-cubes). The observed splitting behaviour indica...

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Veröffentlicht in:	Journal of alloys and compounds 1998-05, Vol.270 (1), p.145-153
1. Verfasser:	Qiu, Y.Y
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials science Ni-based alloy Ni–Al alloy Particle coarsening Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Precipitation Solid-phase precipitation Splitting transformation
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Zusammenfassung:	The splitting behaviour of γ′ particles (ordered L1 2 phase, Ni 3Al) has been investigated in a Ni–Al alloy aged at 1273 K and 1413 K. It was found that the particles were initially cubic and then they split through different paths to octets (eight sub-cubes). The observed splitting behaviour indicated that the doublet (two parallel plate-like particles) was not stable and could split in order to form a more stable state, i.e. the octet.
ISSN:	0925-8388 1873-4669
DOI:	10.1016/S0925-8388(98)00462-9