【摘要】 研究分形维数与断口形貌的关系 ,选用两套试样 ,一套试样经 2 0 0℃到 70 0℃回火处理 ,另一套含有不同体积分数的非金属夹杂物。这两套试样的断口形貌分别为沿晶断裂 ,韧性断裂和混合型断裂。因此将分形几何学应用于断口形貌的研究 ,可反映材料韧性与分形维数的关系更多还原

【Abstract】 The study attemptsto relate the fractal dimension with fracture morphology.Two groups of specimens were selected.One group of them tempered in different temperature of 200℃ to 700℃ separately and the other contained nonmetallic inclusionswith different volume-fraction.The fracture morphologys show that the fracture ways of the two groups of specimens are intergranular fracture,ductile fracture and mixed fracture,respectively.So the relationship between the toughness of material and the fractal dimension can be showed by applying the fractal geometry to the study of fracture morphology.更多还原