Dislocation Vibration, Morse Potential Function and Temperature Dependence of Critical Resolved Shear Stress of Some Single Crystals

J Mater Sci Technol ›› 1999, Vol. 15 ›› Issue (04): 311-314.

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Dislocation Vibration, Morse Potential Function and Temperature Dependence of Critical Resolved Shear Stress of Some Single Crystals

Jingyang WANG, Enke TIAN, Chiwei LUNG

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

Received:1999-01-15 Revised:1999-03-10 Online:1999-07-28 Published:2009-10-10
Contact: Jingyang WANG

Abstract

Abstract: By using Morse potential model, we calculate the temperature dependence of critical resolved shear stress (CRSS) of some single crystals. Dislocation-phonon interaction is considered in this paper. Theoretical calculations fit experimental law well. Investigations show: interatomic force is the physical intrinsic that controls the plastic deformation processing of materials, and the temperature dependence of CRSS mainly comes from the temperature dependence of dislocation vibration.

Key words:

Jingyang WANG, Enke TIAN, Chiwei LUNG. Dislocation Vibration, Morse Potential Function and Temperature Dependence of Critical Resolved Shear Stress of Some Single Crystals[J]. J Mater Sci Technol, 1999, 15(04): 311-314.

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Dislocation Vibration, Morse Potential Function and Temperature Dependence of Critical Resolved Shear Stress of Some Single Crystals

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