取向硅钢二次再结晶机制的研究

Study on Secondary Recrystallization Mechanism of Oriented Silicon Steel

基于Goss织构二次再结晶的本质是抑制{110}<112>、{210}<001>和偏Goss织构{110}<225>的异常长大,使锋锐Goss长大成为唯一选择的认识,在总结前人七十多年理论研究和鞍钢取向硅钢研发的基础上,提出了Goss织构异常长大机制是选择生成、定向遗传、择优长大的结果。机制诠释了Goss织构是最易形成的剪切织构,在定向遗传中需与第二相粒子抑制力近恒量高度契合,通过抑制力近恒量控制为Goss织构异常长大提供择优环境,据此鞍钢成功开发出低温渗氮取向硅钢工艺技术及产品。

Based on the understanding that the essence of secondary recrystallization of Goss texture is to restrain the abnormal growth of{110}<112>,{210}<001>and partial Goss texture{110}<225>,it was concluded that making sharp Goss grow up becomes the only choice.On the basis of the summary of previous theoretical research for over 70 years combined with develop-ments of oriented silicon steels by Ansteel,it was proposed that the abnormal growth mechanism of Goss texture was the result of selective generation,directed inheritance and selective growth.The mechanism explained that the Goss texture was the most easily formed shear texture,and in directed inheritance,Goss texture was required to be highly compatible with the near-constant of the second-phase particle inhibition force,providing an optimal environment for the abnormal growth of Goss texture by controlling the inhibition force near constant.The control of the near constant of the inhibition force provides an optimal environment for the abnormal growth of the Goss texture.Based on that,Ansteel successfully developed the process technology for producing low temperature nitrized oriented silicon steels and steel products.