Effect of copper content on the texture of two high-silicon non-oriented silicon steels without Cu and with trace Cu was analyzed by EBSD technology,and the microscopic mechanism was also investigated.The results indicate that after high temperature annealing at 1000 ℃,the addition of trace Cu element has an obvious harmful effect on the texture of finished silicon steel product.The high temperature annealing process plays a more full role in optimizing the texture by the shear bands,while such optimizing effect is inhibited obviously by adding of trace Cu to the non-oriented silicon steel,which is attributed to the dispersive distribution of the copper precipitates in the steel matrix.
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