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首页> 外文期刊>Journal of Materials Engineering and Performance >Assessment of the Effect of Microstructure on the Magnetic Behavior of Structural Carbon Steels Using an Electromagnetic Sensor
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Assessment of the Effect of Microstructure on the Magnetic Behavior of Structural Carbon Steels Using an Electromagnetic Sensor

机译：使用电磁传感器评估微结构对结构碳钢磁性能的影响

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摘要

The magnetic properties of four carbon steels were evaluated using an electromagnetic sensor and correlated with their microstructures. Their composition, microstructure features (such as ferrite volume fraction, grain size, inclusions, etc), and hardness were compared with their saturated magnetic flux density, retentivity, and coercivity. The four steel rods used in this study were hot-rolled AISI 1010, AISI 1018, AISI 1045, and AISI 1045-high manganese/“stress proof.” The results show that microstructures have a notable effect on the magnetic properties of the steels. In addition, the effect of variations in cross-section area of the steel rods on the magnetic response was investigated. The steel rods diameters were systematically reduced by machining and then magnetically evaluated. Consistent relationships between metallurgical characteristics of the structural carbon steels and their magnetic properties measured with the electromagnetic sensor were obtained. In addition, the sensor was found to be able to detect changes in magnetic properties due to variations in cross-section area. These results reveal that the electromagnetic sensor has the potential to be used as a reliable nondestructive tool to detect and monitor microstructural and morphological changes occurring during the different stages of steel manufacturing or alterations caused by a degradation mechanism.
机译：使用电磁传感器评估了四种碳钢的磁性能，并将其与其微观结构相关联。将它们的成分，微观结构特征（例如铁素体体积分数，晶粒尺寸，夹杂物等）和硬度与它们的饱和磁通密度，保持力和矫顽力进行了比较。本研究中使用的四根钢棒是热轧AISI 1010，AISI 1018，AISI 1045和AISI 1045高锰/“耐应力”的。结果表明，显微组织对钢的磁性能有显着影响。另外，研究了钢棒的截面积的变化对磁响应的影响。通过加工系统地减小了钢棒的直径，然后进行了磁性评估。获得了结构碳钢的冶金特性与电磁传感器测得的磁性能之间的一致关系。另外，发现该传感器能够检测由于横截面积的变化而引起的磁性能的变化。这些结果表明，电磁传感器有潜力用作可靠的非破坏性工具，以检测和监视在钢铁制造的不同阶段发生的微观结构和形态变化或由降解机理引起的变化。

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