Development of Clad Materials Obtained by Cold Roll Bonding in Air Using Metallic Powder

分别在铝和低碳钢衬底上预制的纯金属粉末在室温空气中轧制形成覆层材料。结果表明，粉末尺寸对部分轧制率的影响以及熔覆层和基材的部分轧制率对总轧制率的影响是轧制性能的重要方面。此外，铝覆层材料在低碳钢上的结合强度足够高，与铸铁相比，覆层材料具有优异的抗氧化性能。因此，通过设计一种包覆层的结构，可以揭示出各种特性的材料开发能力。

Pure metallic powder preformed on the aluminum and mild steel substrates, respectively, were rolled to form cladding materials at room temperature in air. It is shown that the property of the rolling about the influence of the powder size on the partial rolling ratio and the influence of the partial rolling ratios of the cladding layer and the substrate on the total rolling ratio. Also, adhesion strength of cladding materials of aluminum on mild steel substrate has sufficient strength and the cladding materials showed excellent oxidation resistance compared with a cast iron. Therefore, the ability of materials development with various characteristic is opened out by design a structure of the cladding layer.