%0 Journal Article %A Samadi, A. %A Abdollah-zadeh, A. %A Assadi, H. %T Effect of Composition on the Precipitation of  in Rapidly Quenched Ni-Al Binary Alloys %J Modares Mechanical Engineering %V 10 %N 1 %U http://mme.modares.ac.ir/article-15-2042-en.html %R %D 2010 %K Heat treatment, Ni-Al System,  Precipitation, Lattice Mismatch, %X The effect of aluminium content on the precipitation of  in rapidly quenched Ni-Al binary alloys was investigated. Microstructural analyses of annealed and quenched samples indicate a transition from uniform to bimodal  phase distribution in the composition range between 15.3 and 17.5 at.%Al. This transition is accompanied by changes in the morphology of  precipitates. The microstructural observations are discussed in view of both kinetic and crystallographic considerations. %> http://mme.modares.ac.ir/article-15-2042-en.pdf %P 103-109 %& 103 %! %9 %L A-10-13618-10 %+ Tarbiat Modares University %G eng %@ 1027-5940 %[ 2010