J Mater Sci Technol ›› 1995, Vol. 11 ›› Issue (2): 133-136.

• Articles • Previous Articles     Next Articles

Role of Edge and Screw Dislocations in Deformation of Metals

Chiwei LUNG(International Centre for Materials Physics, Institute of Metal Research,Chinese Academy of Sciences, Shenyang, 110015, China)   

  • Received:1995-03-28 Revised:1995-03-28 Online:1995-03-28 Published:2009-10-10

Abstract: It was widely accepted that the screw dislocation is responsible for the strong temperature dependence of the yield stresses observed in bcc metals. In this paper, we show the role of edge dislocations in the deformation of metals and point out that in some cases, its main contribution to the plastic flow behaviour cannot be ignored.