Abstract
Effect of high magnetic field annealing on recrystallization behavior of cold rolled H70 brass was investigated. Specimens were annealed with and without a 12T magnetic field at different temperatures, respectively. The results showed that the recrystallization fraction of field-annealed specimen is lower than that of the non-field annealed specimen, while the percentage of Σ3 grain boundaries is higher than that of the non-field annealed specimen. The analysis results indicate that the high magnetic field hinders the recryatallization of cold rolled H70 brass, but promotes the formation of Σ3 grain boundaries. This may attributed to the formation of large number of asymmetric grain boundaries under the high magnetic field decreases the grain boundary migration process which leads to the slower of recrystallization process and makes the special grain boundary have more chance to grow up under the magnetic field.
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