Roughness analysis of the cracked surfaces of a face centered cubic alloy

摘要: Intergranular and transgranular fracture surfaces obtained in a face centered cubic alloy are studied using 3D maps reconstructed by scanning electron microscopy stereo imaging. The roughness exponents measured the intergranular surfaces, respectively, zeta = 0.83 +/- 0.05 0.75 0.05, agreement with universal value of fractures. However, slightly smaller related to surface could be consequence crystallographic zones disseminated on whose exponent 0.65 0.07 is close one usually 2D