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采用电磁相分离法制备出以初生富铁相 (Al Si Fe Mn复杂金属间化合物 )为增强相 ,表层硬度为 HB 6 2 .2 5 ,基体硬度为 HB 5 9.0 0的 Al- 1 1 .70 % Si- 1 .2 0 % Fe- 1 .5 0 % Mn合金自生表层复合材料 .增强相的显微硬度为 HV 842 .87,大小为 2 0~ 80μm.该表层复合材料同基体材料相比 ,耐磨性提高了 5 7.41 % .所用方法工艺过程简单、成本低 ,为解决材料在服役环境中不同部位、不同性能的问题提供了新途径 .
Electromagnetic phase separation method was used to prepare Al-1-170 with a primary iron-rich phase (Al Si Fe Mn complex intermetallic compound) as the reinforcing phase, a surface hardness of HB 6 2.5, and a substrate hardness of HB 5 9.0 0 % Si-1.2% Fe-1.5% Mn alloy viable composites.The microhardness of the reinforced phase is HV 842.87 and the size is 20-80 μm.The surface layer composites are comparable to the matrix materials , Wear resistance increased by 5 7.41%. The method used has the advantages of simple process and low cost, and provides a new way for solving the problem of different parts and different performances of materials in the service environment.