过热度对轴承钢凝固组织整体形貌特征及渗透率的影响
曹江海, 侯自兵, 郭中傲, 郭东伟, 唐萍

Effect of Superheat on Integral Morphology Characteristics of Solidification Structure and Permeability in Bearing Steel Billet
CAO Jianghai, HOU Zibing, GUO Zhongao, GUO Dongwei, TANG Ping
图7 过热度对分形维数和比表面积的影响
Fig.7 Effects of superheat on fractal dimension (a) and specific surface area (b)