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探讨了钨合金材料微观组织的分形特征,分别用小岛法和盒维数法测定了91W-6.3Ni-2.7Fe和93W-4.9Ni-2.1Fe两种钨合金材料不同处理状态下的微观组织的分形维数。结果表明,钨合金材料的微观组织具有典型的分形特征,可以用分形维数定量表征钨合金材料的微观组织。对于锻造态钨合金材料,由于钨颗粒沿轴向被拉长,造成形变后的微观组织在纵、横两个截面上的分形维数出现较大差异;对于烧结态钨合金材料,纵、横截面的分形维数基本一致,随着钨含量的增加,分形维数值增大。提示我们,使用分形维数定量表征钨合金材料微观组织是可行的。
The fractal characteristics of the microstructure of tungsten alloy were discussed. The microstructures of 91W-6.3Ni-2.7Fe and 93W-4.9Ni-2.1Fe two tungsten alloys under different treatments were measured by the island method and box dimension method respectively. Fractal dimension. The results show that the microstructure of tungsten alloy has typical fractal characteristics, and the fractal dimension can be used to quantitatively characterize the microstructure of tungsten alloy. For the forged tungsten alloy, the fractal dimension of the microstructures in the longitudinal and transverse sections are greatly different due to the elongated tungsten particles along the axial direction. For the tungsten alloy sintered materials, the vertical and horizontal The fractal dimension of the section is basically the same, with the increase of tungsten content, the fractal dimension increases. Prompted us to use fractal dimension quantitative characterization of tungsten alloy material is feasible.