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首页> 外文期刊>ISIJ international >Ferrite Transformation during Deformation of Super-cooled Austenite
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Ferrite Transformation during Deformation of Super-cooled Austenite

机译：过冷奥氏体变形过程中的铁素体相变

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摘要

The research results achieved by the Korean national project, HIPERS-21, on the ferrite transformation during the deformation of super-cooled low carbon austenite were summarized. Fine ferrite grains formed during the deformation of austenite, i.e. dynamically. The rate of ferrite nucleation was estimated to be accelerated several hundred times by the deformation of austenite. However, the grain refinement could not be explained by the accumulated strain alone. The application of stress during the ferrite transformation is known to effectively weaken the orientation relationship of the ferrite grains with austenite, making the coalescence of the grain difficult during the growth of ferrite and effectively increasing the nominal ferrite nucleation rate. The application of the dynamic ferrite transformation to industrial hot rolling or plate milling was also summarized. The multi-pass rolling technique was introduced to produce a fine ferrite grain structure and controlled cooling was adopted to produce a multi-phase structure in order to improve the work hardening rate of fine grained steels.
机译：总结了韩国国家计划HIPERS-21在过冷低碳奥氏体变形过程中对铁素体相变的研究成果。在奥氏体变形期间，即动态地形成细的铁素体晶粒。据估计，由于奥氏体的变形，铁素体成核的速度加快了数百倍。但是，晶粒细化不能仅通过累积应变来解释。已知在铁素体相变过程中施加应力会有效地削弱铁素体晶粒与奥氏体的取向关系，使铁素体生长过程中晶粒难以聚结，并有效地提高了标称铁素体成核速率。还总结了动态铁素体相变在工业热轧或平板铣削中的应用。为了提高细晶粒钢的加工硬化率，引入了多道次轧制技术以产生细微的铁素体晶粒组织，并通过控制冷却来产生多相组织。

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