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The microstructures of NdFeB conventional ingot and strip casting (SC) flake were studied by BSE and energy spectra. The non-equilibrium state of the microstructure of SC flakes was discussed. By observing the change of microstructure of SC flakes after annealing at 700 ℃, 800 ℃ and 900 ℃, the characteristics of SC flakes were investigated further. The influence of the characteristic on magnetic property was analyzed.
The microstructures of NdFeB conventional ingot and strip casting (SC) flake were studied by BSE and energy spectra. The non-equilibrium state of the microstructure of SC flakes was discussed. By observing the change of microstructure of SC flakes after annealing at 700 ° C, The characteristics of SC flakes were investigated further. The influence of the characteristic on magnetic property was analyzed.