Preparation of Fe73Cr18Ni9 Alloy Powder from Nano-Fe73Cr18Ni9 Composite Oxide by Hydrogen Co-reduction Process

摘要

In this paper, Fe73Cr18Ni9 composite oxide nano-powder was prepared by chemical co-precipitation method taking FeSO_4·7H_2O, CrCl_3·6H_2O, NiSO_4·6H_2O and NaOH as raw materials. Its particle size was about 50nm. Then Fe73Cr18Ni9 alloy powder was obtained by hydrogen co-reduction process taking advantage of active nano-characteristics of Fe73Cr18Ni9 composite oxide nano-powder at 1000°C after 1.5h of co-reduction. Its particle size was about 300nm.