J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (03): 363-366.

• Research Articles • Previous Articles     Next Articles

Dislocation velocity exponent and the strain rate

Hongyan LIU, Xiaowei WANG   

  1. International Center for Material Physics, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2000-01-27 Revised:2000-04-12 Online:2001-05-28 Published:2009-10-10
  • Contact: Hongyan LIU

Abstract: The process of dislocation multiplication has been described hv chaos theory, trying to reveal the connection between the microstructures on the mesoscopic scale and the mechanical properties of material on the macroscopic scale. The relationship between the dislocation velocity exponent and the maximum of strain rate is given. The results obtained from logistic equation with exponent and the dislocation multiplication dynamic equation are compared. A scale law in one-dimension-map model with exponent is shown when the exponents of equations are changed.

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