Affiliation:
1. Nagoya Institute of Technology
2. Aichi Institute of Technology
Abstract
The phase-separation behaviour of γ’ precipitates in Ni-7.1Al-6.7Si alloy was
investigated by means of transmission electron microscopy (TEM). When the alloy is aged at
1173K, coherent spherical γ’ particles having ordered L12 structure appear in γ matrix having
disordered A1 structure. When the two-phase microstructure of γ + γ’ is aged at 973K, spherical γ
particles precipitate in the individual γ’ precipitates. In the course of ageing at 973K, the new γ
particles grow keeping the spherical shape, their number gradually decreases and finally γ particles
aging at 1173K gradually change their shape from sphere to cuboid, but do not practically change
their size, i.e. such phase-separation behaviour brings the decelerated growth of γ’ precipitates.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference9 articles.
1. M. Doi: Mater. Trans. JIM, Vol. 33 (1992), p.637.
2. T. Maebashi and M. Doi: Mater. Sci. & Engng. A, Vol. 373 (2004), p.72.
3. M. Doi, Y. Inagawa, T. Koyama and T. Miyazaki: Philos. Mag. Lett., Vol. 73 (1996), p.331.
4. M. Doi, T. Koyama, T. Taniguchi and S. Naito: Mater. Sci. & Engng. A, Vol. 329-331 (2002), p.891.
5. M. Doi, T. Kozakai, T. Koyama and S. Naito: Ti-2003, Science and Technology (Proc. 10th World Conf. On Titanium), Vol. 2 (2004), p.1075.
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