FRACTAL ANALYSIS OF IMPACT FRACTURE IN STEEL

Abstract

Abstract: By means of fractal analysis,the fractal dimension with relation to the impact toughness,im- pact fracture characteristics and mierostructures of steel under low temperature impact have been investigated.Experimental results show that the logarithms of impact toughness in- creases monotonically with the increase of fractal dimension.The microstruetures have a great influence on fraetal dimension.There is an appropriate correlation between fraetal dimension and fracture mechanism.

Key words: fractal dimension, imnpact toughness, yardstick length, fracture

SU Hui ZHANG Yugui YAN Zhenqi Northeast University of Technology,Shenyang,China YAN Zhenqi Professor Dept.of Materials Science and Engineering,Northeast University of Technology,Shenyang 110006,China. FRACTAL ANALYSIS OF IMPACT FRACTURE IN STEEL[J]. Acta Metallurgica Sinica (English Letters), 1990, 3(3): 226-228.

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FRACTAL ANALYSIS OF IMPACT FRACTURE IN STEEL

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