Crystalization behavior of metallic glass powders

LASER prototyping technology has been paid attention for manufacturing molding dies and a small amount of prototype because of time and cost savings. And high strength and corrosion resistance are especially necessary for molding dies. Metallic glass is known as a material of high strength and high corrosion resistance. Crystallization behavior of three kinds of Fe-Si-B-Nb metallic glass powders was studied by differential thermal analysis and isothermal holding experiment. As a result, it has been found by differential thermal analysis that the stability of glass phase increases when less Fe and more Si are contained, while crystalline phase had existed in as atomized powder when more Si and B are contained