The effect of a magnetic field upon grain growth in nanocrystalline Ni, produced by electrodeposition, was investigated. Magnetic annealing was carried out at 573K, for 120s to 1.8ks, under a direct-current magnetic field of 1.2MA/m (15kOe). A magnetic field
enhanced grain growth in the early stages of annealing was observed, which produced an homogeneous grain boundary microstructure.

Enhancement of Homogeneity of Grain Boundary Microstructure by Magnetic Annealing of Electrodeposited Nanocrystalline Nickel. K.Harada, S.Tsurekawa, T.Watanabe, G.Palumbo: Scripta Materialia, 2003, 49[5], 367-72