Dy

1. Introduce – Dysprosium is a rare earth metal belonging to the lanthanide series; it is a silvery-white metal with atomic number 66. – Although it is relatively chemically stable, it oxidizes slowly in air and possesses the ductility that makes it easy to work with. – From a metallurgical perspective, dysprosium goes beyond being a simple alloying element; it serves as a key “modifier” that ensures the thermal stability of high-performance magnetic materials. – In particular, it possesses strong magnetic anisotropy and the ability to enhance coercivity, making it a st...