本发明公开了一种核反应堆结构材料用FeCrAl基合金的制备方法，按照FeCrAl基ODS合金成分配方将Fe、7～10％Cr、1.0～2.5％W、3.5～5.5％Al、0～0.6％Nb、0～0.4％Ti、1.0～3.0％Sc、0～0.3％V元素进行熔炼获得合金，将熔炼后的合金制得合金粉末；将合金粉末与0.25～0.5％Y2O3粉末机械合金化球磨处理；球磨后的粉末通过热等静压进行烧结致密化；热等静压后获得合金坯进行锻造处理；锻造后的样品经热轧处理获得FeCrAl基ODS合金。本发明通过优化组分及控制工艺获得的FeCrAl集ODS合金具有良好的常温和高温力学性能、以及优异的高温抗氧化和耐腐蚀性能。

The invention discloses a method for preparing FecRAL-based alloy for nuclear reactor structure materials. The alloy was obtained by smelting Fe, 7-10%Cr, 1.0-2.5%W, 3.5-5.5%Al, 0-0.6%Nb, 0-0.4%Ti, 1.0-3.0%Sc and 0-0.3%V elements according to the composition of FecRal-based ODS alloy. The alloy powder was prepared from the melted alloy. The alloy powder was mechanically alloyed with 0.25 ~ 0.5% Y2O3 powder by ball milling. The powder after ball milling is densified by hot isostatic pressing. After hot isostatic pressing, the alloy billet is obtained for forging treatment. The forged sample was hot rolled to obtain FecRAL-based ODS alloy. The FeCrAl set ODS alloy obtained by optimizing the composition and control process has good mechanical properties at room temperature and high temperature, and excellent high temperature oxidation resistance and corrosion resistance.