【摘要】 本文基于广义非规则维模型,提出了一种对球墨三维形貌进行定量描述的方法。用该法对Sb-Mg球铁的断口石墨形貌进行研究,结果表明利用非规则维恒权均值(FD)、FD直方图和FD值图象,可以定量地描述石墨表面的起伏程度,各类起伏的频率及其空间分布特征,从而客观地反映Sb对Mg蚌铁中球墨三维形貔的影响。更多还原

【Abstract】 Based on the model of generalized fractal dimension, a method for quantitatively describing the stereoscopic morphology of spheroidal graphites is proposed. By means of this method the surface morphology of spheroidal graphites in the fracture of Sb-Mg-treated ductile iron has been investigated. Test results show that the fluctuation of the surface of a spheroidal graphite, the frequency of various kinds of fluctuation and the features of the spatial distribution of these fluctuations can be quantitatively described and the effects of Sb on the stereoscopic morphology of Mg-treated ductile iron can be well studied.更多还原