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Experimental Study and Thermodynamic Modeling of B-Fe-W System
Journal of Phase Equilibria and Diffusion ( IF 1.4 ) Pub Date : 2021-08-20 , DOI: 10.1007/s11669-021-00912-x
Ivana Kirkovska 1, 2 , Viera Homolová 1 , Ondřej Zobač 3 , Adéla Zemanová 3
Affiliation  

The present study investigates experimentally phase equilibria relations in the B-Fe-W ternary system. For the experimental study, B-Fe-W alloys were produced by arc-melting. These alloys were equilibrated using long-term annealing for 2000 h and 4224 h at temperatures of 1050 and 677 °C, respectively. The alloys were characterized by scanning electron microscopy coupled with energy dispersive x-ray spectroscopy, x-ray powder diffraction analysis, and differential scanning calorimetry. Based on the experimental results, the B-Fe-W system was modeled using the CALPHAD method. Herein, boron was modeled interstitially in the solid solutions of iron and tungsten. Also, in this study, the volume phase fractions for selected B-Fe-W alloys were determined using an image analysis technique.



中文翻译:

B-Fe-W体系的实验研究和热力学建模

本研究通过实验研究了 B-Fe-W 三元系统中的相平衡关系。对于实验研究,B-Fe-W 合金是通过电弧熔化生产的。这些合金分别在 1050 和 677 °C 的温度下使用 2000 小时和 4224 小时的长期退火来平衡。通过扫描电子显微镜结合能量色散 X 射线光谱、X 射线粉末衍射分析和差示扫描量热法对合金进行表征。根据实验结果,使用 CALPHAD 方法对 B-Fe-W 系统进行建模。在此,硼在铁和钨的固溶体中以间隙方式模拟。此外,在本研究中,选定的 B-Fe-W 合金的体积相分数是使用图像分析技术确定的。

更新日期:2021-08-20
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