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中文摘要：
本研究选取了中碳合金钢40MnMoV作为实验材料，在其奥氏体化后的连续冷却过程中施加不同强度（0T、6T、10T、14T）的稳恒强磁场。通过显微组织观察、硬度测试及定量金相的方法初步探讨了强磁场对40MnMoV钢连续冷却转变组织的影响。结果显示，强磁场加速过冷奥氏体的高温分解，随所施加磁场强度的升高，先共析铁素体含量增多，晶粒尺寸增大。
英文摘要：
Specimens of steel 40MnMoV, a medium-carbon alloy steel, were austenitized first and then continuous cooled in static magnetic field with various field intensities （0T, 6T, 10T, 14T）, respectively. The effects of high magnetic field on the microstructures and hardness were primarily investigated by optical microscopy, hardness testing and quantitative metallography. The results show that the decomposition of under-cooling austenite is accelerated by the high magnetic field, and the amount and grain size of the pro-eutectoid ferrite increase with the increase of magnetic field intensity.
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