Acta Metallurgica Sinica (English Letters) ›› 1999, Vol. 12 ›› Issue (4): 557-561.

• Research paper • Previous Articles     Next Articles

COMPUTER SIMULATION OF EARLY STAGE OF DISLOCATION STRUCTURES IN A FATIGUED COPPER SINGLE CRYSTAL

J.H.Yang1,2) , S.X.Li1)and C.X.Ma2) 1) State Key Laboratoryfor Fatigueand Fracture of Materials,Instituteof Metal Research ,The Chinese Academy of Sciences,72 Wenhua Road,Shenyang 110015 ,China 2) Department of Materials Physics, Northeastern University,Shenyang 110006 ,China   

  • Received:1999-08-25 Revised:1999-08-25 Online:1999-08-25 Published:2009-10-10

Abstract: The dislocation evolution wassimulated by using positiveand negative parallelstraightedgedislocationsrandomly distributing on the primary slip planes astheinitialconditions. Thevein and wallstructuresof dynamicequilibrium have been obtained. Abig dipolestructure wasfound inthesimulation.

Key words: computersimulation , dislocation structures, fatigue, copper single crys tals.