Non-destructive evaluation of magnetic anisotropy associated with crystallographic texture of interstitial free steels
Non-destructive evaluation of magnetic anisotropy associated with crystallographic texture of interstitial free steels
复制标题
与无间隙原子钢晶体织构相关的磁各向异性的无损评估
DOI：
10.1016/j.jmmm.2023.170374
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发表时间：
2023
影响因子：
2.7
通讯作者：
Aghadavoudi Jolfaei M
中科院分区：
文献类型：
--
作者：
Aghadavoudi Jolfaei M
无间隙(IF)钢作为第三代深冲钢，在汽车工业中被用于要求良好的成形性、强度和高表面质量的应用。成形性是通过具有强烈的伽马纤维(γ纤维)结晶织构实现的，并通过测量拉伸测试的r值来量化。虽然晶体织构通常是在经过仔细的表面处理后使用EBSD或X射线衍射仪对样品进行测量的，但希望能够在生产材料上进行非破坏性评估。为了实现这一目标，磁各向异性测量是一种有吸引力的方法，因为众所周知，钢的磁性行为受到其晶体结构的影响。在再结晶过程的不同阶段(即商业冷轧和退火热处理以获得完全和部分再结晶组织)以及由此产生的不同织构成分的一组无间隙钢样品被用来研究IF钢磁各向异性的测量和模型预测的可能性。为了将预测的磁各向异性与实测值进行比较，采用了考虑晶体织构的有限元(FE)组织模型。研究结果表明，本研究中采用的非破坏性技术--可放置在片状样品上的U型电磁传感器--有望快速评估IF钢的磁各向异性。
Interstitial free (IF) steels, as third generation of deep drawing steel, are used in the automotive industry for applications requiring good formability, strength and a superior surface quality. The formability is achieved by having a strong gamma fibre (γ-fibre) crystallographic texture and is quantified by measuring the r-value from tensile tests. Whereas the crystallographic texture is typically measured using EBSD or XRD on samples after careful surface preparation, it is desirable to be able to evaluate it non-destructively on production material. To do this aim, a magnetic anisotropy measurement is an attractive approach as the magnetic behaviour of steel is known to be affected by its crystallographic texture. A set of interstitial free steel samples, at different stages of recrystallisation process (i.e., commercially cold rolled and annealed to achieve fully and partially recrystallised microstructures) and consequently different texture components have been employed to study the measurement and possibility of model-wise predicting magnetic anisotropy in IF steels. In order to compare the predicted magnetic anisotropy to the measured values, a finite element (FE) microstructure model that takes into account crystallographic texture was applied.The findings indicate that the non-destructive technique deployed in this study - a U-shaped electromagnetic (EM) sensor that can be placed onto a sheet specimen - is promising for a rapid assessment of the magnetic anisotropy in IF steels.