Constitutive laws for deformation and dynamic recrystallization in cubic metals

Conference · Thu Apr 01 00:00:00 EST 1993

OSTI ID:10141657

Kocks, U F; Chen, S R

We describe two cases in which constitutive laws for deformation kinetics are available that are both physically well founded and experimentally well obeyed. New experiments on Al-Mg alloys, in the regime of viscous deformation, fit the solute drift equation very well, with n-3 and Q{sub D} unadjustable; they do not fit the solute drag model. The high-stress regime, as well as all data for pure copper, fit the model of hardening and dynamic recovery, at least up to temperatures of 0.6 T{sub m}. In both cases, dynamic recrystallization occurs at high temperatures. It seems to follow rather than determine the deformation kinetics.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10141657
• Report Number(s): LA-UR-93-1065; CONF-930729-1; ON: DE93010740
• Resource Relation: Conference: 7. international symposium of the Japan Institute of Metals: aspects of high temperature deformation and fracture of crystalline materials,Nagoya (Japan),28-31 Jul 1993; Other Information: PBD: [1993]
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM BASE ALLOYS
DEFORMATION
RECRYSTALLIZATION
MAGNESIUM ALLOYS
COPPER
STRAIN HARDENING
360103
360102
MECHANICAL PROPERTIES
STRUCTURE AND PHASE STUDIES