介绍了机械能助Zn Al共渗 ,用开发研制的Zn Al共渗剂 ,在渗锌的温度下实现了Zn Al共渗。 42 0℃× 4h可得到大于40 μm的Zn Al共渗层。共渗层组织与渗锌层相近 ,约含质量分数 5 0 %锌 ,含 5 %铝。共渗层是由FeZn4 和少量FeAl3 相组成。研制的Zn Al共渗剂的松装比容大 ,耗锌量少 ,成本低 ,是取代热镀锌、热镀锌铝的良好新技术 The mechanical energy-assisted Zn Al permeation was introduced. The developed Zn Al permeation agent was used to achieve Zn Al permeation at the temperature of zinc infiltration. 42 0 ℃ × 4h can be greater than 40 μm Zn Al co-diffusion layer. The total infiltration layer is similar to the infiltrated zinc layer and contains about 50% zinc and 5% aluminum. The total infiltration layer is composed of FeZn4 and a small amount of FeAl3 phase. The developed Zn Al permeation agent has the advantages of large specific bulk, less zinc consumption and low cost, and is a good new technology instead of hot-dip galvanizing and hot-dip galvanizing aluminum