相变法制备强{100}类织构电工钢的成分、工艺与原理
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摘要
相变法可以制备出远高于形变与再结晶工艺组合得到的有利{100}织构的强度,有效提高磁性能并实现节能环保,但其形成原理及成分的影响尚未得到统一的认识。本文在前期研究几种不同成分合金中的相变法形成{100}织构的基础上,进一步探索了其形成过程中新的组织特征和受成分的影响。结果表明,通过不同的工艺可在很宽的成分范围通过相变法制备较强的{100}类织构,且制备成本可有效降低。相变法既可制备出近{100}无取向钢,也可制备强{100}<011>双取向硅钢。形变织构对相变织构有重要的继承作用。
Phase transformation can produce very strong and beneficial {100} texture in comparison with the technique of optimization of deformation and recrystallization parameters,thus improve the magnetic properties and realize environment protection and energy saving.However,the related principles and optimized compositions are not very clear.Based on our previous works on several electrical steel compositions which show effective {100} texture enhanced by transformation,this work explores further the extents of composition or processing parameters for enhancing {100} textures by transformation or the possible cost reductions for processing.It is demonstrated that transformation can produce both {100} type of non-oriented electrical steels and {100}<011> type of double-oriented electrical steels and moreover deformation texture plays very important role for the formation of strong transformation texture.
引文
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