FRACTAL ANALYSIS OF IMPACT FRACTURE IN STEEL

FRACTAL ANALYSIS OF IMPACT FRACTURE IN STEEL

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摘要 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. 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.

作者 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

出处《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1990年第3期226-228,共3页 金属学报（英文版）

关键词 fractal dimension imnpact toughness yardstick length FRACTURE fractal dimension imnpact toughness yardstick length fracture

分类号 TG-55 [金属学及工艺]

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Acta Metallurgica Sinica(English Letters)

1990年第3期

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