【摘要】 用垂直剖面法测定了34CrMoA转子钢在550℃循环蠕变断口的分形维数,分析、比较了分形维数与蠕变性能的关系,结果表明,分形维数与断裂应变呈线性关系。更多还原

【Abstract】 Vertical section method has been used to measure the fractal dimension of cyclic creep fracture surfaces of 34CrMoA rotor steel at 550℃. The relationship between fractal dimension and cyclic creep properties has been analyzed. The fractal dimension is dependent upon the power product of minimum creep rate and rupture time, and satisfies the linear function with rupture strain.更多还原