Particle Strengthening Effects:Particle size and volume fraction Complex 80 alloy Increasing particle strength Ni-12.7at%Al f=0139 60 Increasing volume fraction,f i-12.7at%A1 f=0.057 40 100nm 0 10 15 20 Radius ofy'particles (nm)Particle Strengthening Ef ects: Particle size and volume fraction