结果表明，随着石墨添加量的增加，复合材料的抗拉强度和伸长率逐渐下降，硬度逐渐上升，摩擦系数逐渐变大。
It shows that the composites' tensile strength and elongation decrease while the hardness and friction coefficient increase with the addition content of graphite.
随着挤压比的增加，抗拉强度和伸长率提高。
With the increasing of extrusion ratio, both tensile strength and extensibility are improved.
分析结果表明，轧制变形使板带晶粒细化，抗拉强度增加，伸长率降低；
The results show that the rolling will make the grain fine, the tensile strength increased and the prolongation rate reduced.
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