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采用Gasar工艺成功制备了藕状多孔Cu,研究了其室温下的拉伸拉伸性能及各向异性。结果表明:多孔Cu的拉伸性能主要取决于气孔率和拉伸方向,平行气孔轴向拉伸时,抗拉强度随着气孔率的增加线性下降,气孔对基体的应力集中作用微小,抗拉强度的数学模型数值和模拟数值与试验数值拟合良好;垂直气孔轴向拉伸时,抗拉强度随气孔率的增大而明显下降,气孔对基体的应力集中作用显著,抗拉强度的试验数值与模型数值以及模拟数值基本符合。
The lotus-shaped porous Cu was successfully prepared by Gasar process. The tensile properties and anisotropy at room temperature were studied. The results show that the tensile properties of porous Cu mainly depend on the porosity and tensile direction. The tensile strength of porous Cu decreases linearly with the increase of porosity when the parallel stomatal is stretched in the axial direction. The stress concentration of pores on the substrate is small, The strength and numerical values of the mathematical model fitted well with the experimental values. Tensile strength decreased obviously with the increase of porosity when the vertical stomatal was stretched in the axial direction. The stress concentration of the stoma was significantly affected by the tensile strength The values are basically in accordance with the model values and the simulation values.