𝜸^′ Precipitation and Growth Kinetics in Mechanically Alloyed Ni–Al

Table 4

Activation energy Q (kJ/mol) of atomic diffusion derived from growth rate of γ′ precipitates.

	Activation energy of atomic diffusion (kJ/mol)
Ni–15at%Al (arc)	303
Ni–15at%Al (MA)	188
Ni–15at%Al (MAHP)	210
Ni–15at%Al–0.6at%Y2O3 (MAHP)	186
MA6000 (MAHP)	251