通过奥氏体-铁素体相变和剪切变形改善热轧无取向电工钢中{100}组织和成型性的比较

IF 2.5 2区 材料科学
Chi-hao Yu, Hong-jiang Pan, Yan-ping Zhao, De-ting Tang, Hai-jun Wang
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引用次数: 0

摘要

多年来,工业锰添加电工钢的高磁感应强度被认为是热轧过程中奥氏体-铁素体相变(相变(PT)法)产生的{100}纹理增强。然而,在没有直接实验证据的情况下,这一点仍无法确定。实验证实,添加锰的电工钢{100}纹理改善的原因是热轧过程中奥氏体-铁素体相变引起的再结晶。此外,通过控制热轧变形条件(剪切变形(SD)法)进一步改善热轧电工钢的{100}质地和成型性的方法更有前途。结果表明,SD 法和 PT 法样品中{100}取向再结晶晶粒的成核机制不同,分别为深度剪切变形和奥氏体-铁素体相变。在这种情况下,SD 法样品获得了粗大的{100}取向再结晶晶粒和较低的残余应力,这也是其具有优异{100}质地和可成形性的原因。相比之下,PT 法制备的样品形成了取向随机的细小再结晶晶粒,并积累了严重的残余应力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Comparisons of {100} texture improvement and formability in hot-rolled non-oriented electrical steel by austenite–ferrite phase transformation and shear deformation

Comparisons of {100} texture improvement and formability in hot-rolled non-oriented electrical steel by austenite–ferrite phase transformation and shear deformation

Over the years, the high magnetic induction of industrial Mn-added electrical steel is assumed to be the enhancement of {100} texture derived from its austenite–ferrite phase transformation during hot rolling (phase transformation (PT) method). However, it is still undetermined without straightforward experimental evidence. The reason for {100} texture improvement of Mn-added electrical steel is experimentally confirmed due to the recrystallization induced by the austenite–ferrite phase transformation during hot rolling. Moreover, a more promising methodology to further improve {100} texture and formability of hot-rolled electrical steel is promoted by the control of hot rolling deformation condition (shear deformation (SD) method). The results show that the nucleation mechanisms of {100} oriented recrystallized grains are different in the samples by SD and PT methods, which are in-depth shear deformation and austenite–ferrite phase transformation, respectively. In this case, coarse {100} oriented recrystallized grains and low residual stress are obtained in the sample by SD method, which is responsible for its superior {100} texture and formability. In contrast, the sample by PT method forms fine recrystallized grains with random orientations and accumulates severe residual stress.

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来源期刊
自引率
16.00%
发文量
161
审稿时长
2.8 months
期刊介绍: Publishes critically reviewed original research of archival significance Covers hydrometallurgy, pyrometallurgy, electrometallurgy, transport phenomena, process control, physical chemistry, solidification, mechanical working, solid state reactions, materials processing, and more Includes welding & joining, surface treatment, mathematical modeling, corrosion, wear and abrasion Journal of Iron and Steel Research International publishes original papers and occasional invited reviews on aspects of research and technology in the process metallurgy and metallic materials. Coverage emphasizes the relationships among the processing, structure and properties of metals, including advanced steel materials, superalloy, intermetallics, metallic functional materials, powder metallurgy, structural titanium alloy, composite steel materials, high entropy alloy, amorphous alloys, metallic nanomaterials, etc..
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