【摘要】 Fe-80Ni坡莫合金的磁性能是研究人员关注的重点，洁净度是影响合金磁性的重要因素。稀土铈因其优异的脱氧、脱硫能力，成为冶金工业中备受欢迎的添加剂。本研究通过在冶炼中添加稀土铈来改善合金洁净度，从而提高合金的磁性能。在真空感应炉冶炼过程中，通过添加铈对合金深度净化后，合金的氧、硫含量降到很低的水平，合金中夹杂物数量显著降低，合金中的夹杂物被改质成为含铈夹杂。含铈夹杂在合金变形过程中不易变形、破碎，不会出现聚集状态，减小夹杂物对合金磁性能的负面影响。Fe-80Ni经添加稀土铈处理后其磁化率上升，矫顽力下降。更多还原

【Abstract】 Researchers focus on the magnetic properties of Fe-80Ni alloy（79 wt%-81 wt% Ni）.The cleanliness of the alloy influences its magnetic properties.This paper investigated the impact of cerium on the cleanliness and magnetic properties of Fe-80Ni alloy.The mass fraction of cerium ranged from 0 to 0.025%.The O and S contents can be reduced to 0.0008% and 0.0012% respectively when the content of Ce is 0.025%,and the number of inclusions is almost halved compared to blank samples without Ce addition.In addition,the primary inclusions were modified to Ce-containing inclusions（Ce₂O₃,Ce₂O₂S,CeS,and CeO₂） with Ce addition.Compared to the primary aluminosilicate inclusions,the Ce-containing inclusions are resistant to extrusion,elongation,or breakage,while their distribution is more dispersed,resulting in less detrimental effects on the magnetic properties.The magnetic properties of Fe-80Ni alloy are improved with the addition of cerium compared to those without cerium.The coercivity of alloys reduced from 3.67 Oe to 3.58 Oe,while the maximum magnetic susceptibility(χ_max) increased from 0.0173 to 0.0222.更多还原