Preparation method of iron-based alloy powder

The invention discloses a preparation method of iron-based alloy powder, and belongs to the technical field of powder metallurgy. The preparation method comprises the steps of: 1, preparing matrix powder and a plating solution; 2, sequentially putting the matrix powder into a plating solution for chemical plating; 3, and conducting diffusion operation on the plated powder, such that a diffusion speed of alloy elements in the powder is accelerated, and the diffusion uniformity is improved. According to the preparation method of the iron-based alloy powder, nickel-containing ferromolybdenum-based alloy powder is prepared through adopting a chemical plating method, and the prepared nickel-containing ferromolybdenum-based alloy powder has good performance. 本发明公开了一种铁基合金粉末的制备方法，属于粉末冶金技术领域。它包括以下步骤：一、准备基体粉末和制备镀液；二、依次将基体粉末放入镀液中进行化学镀覆；三、对镀覆后的粉末进行扩散操作，加快合金元素在粉末中的扩散速度，提高扩散均匀性。其采用化学镀方法进行含镍钼铁基合金粉末的制备，制备出的含镍钼铁基合金粉末的性能较佳。