【摘要】 为解决钢 Al- 2 8Pb复合板存在的复合界面脆化问题 ,采用 Al- 2 8Pb半固态浆料与钢板进行了半固态铸轧复合研究 ,改变了复合界面结构 ,消除了复合界面的脆化 ,得到了合理的钢半固态 Al- 2 8Pb复合板的加工工艺。结果表明 :在 5 4 5℃钢板预热温度、 10 mm / s铸轧速度条件下 ,当半固态浆料固相率为 35 .6 %时 ,复合界面由比例恰当的铁铝化合物和铁铝固溶体交替构成 ,复合界面的脆化得以消除 ,相应的复合板最大界面剪切强度为 70 .2 MPa,这为实际生产探索出了合理的新技术更多还原

【Abstract】 Mushy Al 28Pb was bonded to steel plate in a semisolid rolling casting study to solve the problem of interfacial embrittlement of steel Al 28Pb bonding plate. The interfacial structure was changed which eliminated the interfacial embrittlement with this practical processing technology for steel mushy Al 28Pb bonding plate. The results show that at a steel plate preheat temperature of 545 ℃, a rolling casting speed of 10 mm/s and a solid fraction of 35.6%, the interface is made of the correct Fe Al compound alternating with the solid solution which eliminated the interfacial embrittlement and gave a maximum interfacial shear strength of 70.2 MPa.更多还原