W-Ni-Fe nanostructure materials synthesized by high energy ball milling

来源期刊：中国有色金属学报(英文版)2000年第1期

论文作者：范景莲 黄伯云 曲选辉

文章页码：57 - 59

Key words：heavy metal alloy; mechanical alloying; nanostructure

Abstract: Investigations were made on the phase evolution and thermal stability of the 90W-7Ni-3Fe(mass fraction,%) milled powders by means of XRD and DTA. The results showed that ball milling produced an ultrafine composite powder consisting of supersolidus solution W(Ni, Fe) and amorphous phase, owing to the fast diffusion rate induced by high density of lattice defects and nanograin boundaries. The amorphous phase results from the extension of the solubility of W inγ-(Ni, Fe) phase which forms during the first 3 h of ball milling.