The coat microstructure of deformation 20 steel hot-dip aluminizing were analysed by optical micro-scope ,TEM and X-ray diffraction ,and formation mechanism were discussed in the paper.

• 用金相显微镜、透射电镜及X射线衍射仪对形变20钢热浸镀铝的镀层微观组织进行了分析，并探讨了其形成机制。