Effect of copper on magnetostriction and mechanical properties of TbDyFe alloys

论文摘要

The intrinsic brittleness of the TbDyFe alloy significantly decreases its mach inability and applications.This paper aims to improve the toughness of TbDyFe alloy by adding Cu. Various alloys of the type(Tb0.3Dy0.7)0.37Fe0.63-χCuχ（χ=0, 0,01.0.03, 0.05, 0.08, 0.1） were fabricated by an arc melting furnace under a high purity argon atmosphere. The microstructure, magnetostrictive properties and mechanical performance were studied systematically. The results show that the （Tb,Dy）Cu phase forms in these alloys upon the addition of Cu. Correspondingly, their toughness improves, attributed to the formation of a （Tb,Dy）Cu phase. Compared to the Cu-free alloy, the fracture toughness （Kic） increases 2-3 times with increasing Cu content. However, the magnetostriction performance of these alloys declines with Cu addition, due to the low-magnetic performance of the （Tb,Dy）Cu phase at room temperature. Compared with other alloys, the alloy with the addition of 1at%Cu shows the best compromise between the saturation magnetostriction and fracture toughness.

论文目录

文章来源

类型: 期刊论文

作者: Naijuan Wang,Yuan Liu,Huawei Zhang,Xiang Chen,Yanxiang Li

来源: Journal of Rare Earths 2019年01期

年度: 2019

分类: 工程科技Ⅰ辑

专业: 金属学及金属工艺

单位: School of Materials Science and Engineering, Tsinghua University,Key Laboratory for Advanced Materials Processing Technology,Ministry of Education

分类号: TG132.2

页码: 68-73

总页数: 6

文件大小: 1301K

下载量: 25

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