SOLIDIFICATION CHARACTERS OF SUPERFINE DIRECTIONAL COLUMNAR GRAINS IN CAST NICKEL-BASE SUPERALLOY
镍基高温合金超细定向柱晶的凝固特性

This paper deals with solidification characters of superfine directional columnargrains in cast nickel-base superalloy K405 with rapid directional solidification equipment withsuper-high temperature gradient.Experimetal results show that superfine directi