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首页> 外文会议>XV international conference on electron microscopy >Application of scanning electron microscopy and EDS microanalysis for microstructural investigation of hypoeutectoid steel
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Application of scanning electron microscopy and EDS microanalysis for microstructural investigation of hypoeutectoid steel

机译：扫描电子显微镜和EDS显微分析在次共析钢组织研究中的应用

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The results of a microstructure, energy dispersive X-ray spectroscopy (EDS) analysis and hardness investigations of the hypoeutectoid steels with 1% Ni, imitating by its chemical composition toughening steels, are presented in the paper. According to PN-EN 10027 standard this steel should have a symbol 37NiMo4-3. The kinetic of phase transformation of undercooled austenite of investigated steel was presented on CCT diagram (continuous cooling transformation). The CCT diagram of tested steel is characterized in that the curves of beginning of the diffusion transitions form a letter "C" and are not separated from bainitic transformation by the stability range of the undercooled austenite. The EDS analysis performed for the selected cooling rates did not reveal any changes in the distribution of alloying elements of hypoeutectoid 37NiMo4-3 steel. However, these studies, from the point of view of the effect of alloying elements (acting jointly) are only the preliminary assessment analysis (beginning) of the impact of the chemical composition gradient in micro-scale in iron-based alloys.
机译：本文介绍了含1％Ni的亚共析钢的微观结构，能量色散X射线光谱（EDS）分析和硬度研究的结果，并通过化学成分增韧钢进行了模拟。根据PN-EN 10027标准，该钢应带有符号37NiMo4-3。在CCT图上给出了研究钢过冷奥氏体的相变动力学（连续冷却转变）。被测钢的CCT图的特征在于，扩散转变开始的曲线形成字母“ C”，并且没有因过冷奥氏体的稳定范围而与贝氏体转变分开。对选定的冷却速率进行的EDS分析未发现次共析37NiMo4-3钢的合金元素分布有任何变化。但是，从合金元素的作用（共同作用）的角度出发，这些研究只是对铁基合金中微观尺度化学成分梯度的影响进行的初步评估分析（开始）。

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