State variable theories based on Hart's formulation

Technical Report · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5985676

Korhonen, M A; Hannula, S P; Li, C Y

In this paper a review of the development of a state variable theory for nonelastic deformation is given. The physical and phenomenological basis of the theory and the constitutive equations describing macroplastic, microplastic, anelastic and grain boundary sliding enhanced deformation are presented. The experimental and analytical evaluation of different parameters in the constitutive equations are described in detail followed by a review of the extensive experimental work on different materials. The technological aspects of the state variable approach are highlighted by examples of the simulative and predictive capabilities of the theory. Finally, a discussion of general capabilities, limitations and future developments of the theory and particularly the possible extensions to cover an even wider range of deformation or deformation-related phenomena is presented.

• Research Organization: Cornell Univ., Ithaca, NY (USA). Dept. of Materials Science and Engineering
• DOE Contract Number: FG02-84ER45055
• OSTI ID: 5985676
• Report Number(s): DOE/ER/45055-2; ON: DE85009474
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
DEFORMATION
ELEMENTS
EQUATIONS
EQUATIONS OF STATE
GRAIN BOUNDARIES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
METALS
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL
NICKEL ALLOYS
PLASTICITY
RELAXATION
SOLIDS
STAINLESS STEEL-304
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
STRAIN RATE
STRESS RELAXATION
TRANSITION ELEMENTS