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Coarsening of γ (Ni–Al solid solution) precipitates in a γ′ (Ni3Al) matrix; a striking contrast in behavior from normal γ/γ′ alloys |
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| Authors: | Y Ma AJ Ardell |
| Affiliation: | Department of Materials Science and Engineering, University of California, 6531-G Boelter Hall, Los Angeles, CA 90095-1595, United States |
| Abstract: | Coarsening of γ precipitates in a γ′ (Ni3Al) matrix depends strongly on volume fraction, in dramatic contrast with coarsening of γ′ precipitates. Coalescence of γ precipitates is easy, unlike the resistance to coalescence of γ′ precipitates. We regard this as indirect proof that anti-phase relationships among γ′ precipitates inhibit coalescence. |
| Keywords: | Coarsening Nickel alloys Nickel aluminides Volume fraction dependence |
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