以Ni-Al二元相图为工具,对等离子电弧炉回收Ni-Al合金细粉,再生之合金的化学组成、相组成及其与冶炼工艺、热处理工艺的关系;它们对骨架镍催化活性的影响等进行了实验、分析和讨论。结果表明:冶炼中补加合适的Al量并采取合理的退火制度,可改变合金的相结构,提高骨架镍的催化活性。 Ni-Al binary phase diagram as a tool for plasma arc furnace recovery of Ni-Al alloy powder, the regeneration of the alloy chemical composition, phase composition and smelting process, heat treatment process; their catalytic effect on the framework of nickel Influence, etc. conducted experiments, analysis and discussion. The results show that adding appropriate amount of Al and adopting reasonable annealing system in the smelting can change the phase structure of the alloy and improve the catalytic activity of the framework nickel.