A compound casting process combined with hot-dip galvanizing was used to produce an aluminum/steel bimetal, obtaining a superior metallurgical interface that mainly consisted of τ₆-Al_4.5FeSi, Al-Zn eutectic and Si phases. Under as-cast condition, the aluminum/steel bimetal had a relatively low bonding strength, resulting from the poor morphology and size of the τ₆-Al_4.5FeSi phase and the Si particles. An appropriate heat treatment procedure greatly improved the interfacial microstructure and bonding strength of the aluminum/steel bimetal, and the phase compositions in the interface were nearly similar to that of the as-cast condition. The excessive heat treatment promoted the excessive growth and cracks of the interface layer, sharply weakening the bonding strength of the aluminum/steel bimetal. With a solution temperature of 500 °C for 2 h, the shear strength of the aluminum/steel bimetal significantly increased by 39% in comparison with that of the as-cast sample, which was mainly attributed to the improvements of the morphology and size of the τ₆-Al_4.5FeSi phase and the Si particles. No excessive growth of the interface layer and the absent of the crack defect were also responsible for the improvement of the shear strength of the aluminum/steel bimetal.

的化合物，铸造工艺用热镀锌组合被用来制造铝/钢双金属，从而获得优异的冶金界面，主要由τ的₆ -Al _4.5硅铁，Al-Zn系共晶和Si相。下铸态条件下，在铝/钢双金属具有相对低的粘合强度，从τ的差形态和尺寸得到的₆ -Al _4.5FeSi相和Si颗粒。适当的热处理程序极大地改善了铝/钢双金属的界面微观结构和结合强度，并且界面中的相组成几乎与铸态条件相似。过度的热处理促进了界面层的过度生长和裂纹，大大削弱了铝/钢双金属的结合强度。固溶温度为500°C 2 h，与铸态样品相比，铝/钢双金属的剪切强度显着提高了39％，这主要是由于形貌和尺寸的改善所致。的τ ₆ -Al _4.5FeSi相和Si颗粒。界面层没有过度生长和裂纹缺陷的缺失也与铝/钢双金属的抗剪强度的提高有关。