过热度对轴承钢凝固组织整体形貌特征及渗透率的影响
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曹江海, 侯自兵, 郭中傲, 郭东伟, 唐萍
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Effect of Superheat on Integral Morphology Characteristics of Solidification Structure and Permeability in Bearing Steel Billet
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CAO Jianghai, HOU Zibing, GUO Zhongao, GUO Dongwei, TANG Ping
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表1 20和35℃下铸坯不同位置的凝固组织分形维数(D)及对应的拟合系数(R2)
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Table 1 Fractal dimensions (D) and corresponding R2 at different locations under 20 and 35oC superheats
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| Sample | 20oC | 35oC |
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| D | R2 | D | R2 | | 1# | 1.6106 | 0.9976 | 1.6746 | 0.9991 | | 2# | 1.6362 | 0.9976 | 1.6856 | 0.9990 | | 3# | 1.6656 | 0.9976 | 1.6911 | 0.9987 | | 4# | 1.7033 | 0.9974 | 1.7651 | 0.9990 | | 5# | 1.7200 | 0.9979 | 1.7680 | 0.9989 | | 6# | 1.7144 | 0.9979 | 1.7549 | 0.9988 | | 7# | 1.7568 | 0.9987 | 1.7820 | 0.9991 | | 8# | 1.7672 | 0.9990 | 1.7914 | 0.9992 | | 9# | 1.7578 | 0.9986 | 1.7729 | 0.9989 | | 10# | 1.7798 | 0.9987 | 1.8047 | 0.9992 | | 11# | 1.7745 | 0.9987 | 1.8140 | 0.9993 | | 12# | 1.7468 | 0.9985 | 1.8144 | 0.9993 | | 13# | 1.7372 | 0.9982 | 1.7666 | 0.9989 | | 14# | 1.7085 | 0.9974 | 1.7657 | 0.9990 | | 15# | 1.7310 | 0.9980 | 1.7775 | 0.9990 | | 16# | 1.7465 | 0.9982 | 1.7380 | 0.9982 | | 17# | 1.7428 | 0.9983 | 1.7223 | 0.9986 | | 18# | 1.6830 | 0.9981 | 1.7202 | 0.9988 | | 19# | 1.6715 | 0.9981 | 1.7175 | 0.9987 | | 20# | 1.6766 | 0.9984 | 1.7343 | 0.9990 |
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