Parametrization of low-temperature deformation characteristics in single crystals of molybdenum
- 1 February 1973
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 44 (2) , 615-618
- https://doi.org/10.1063/1.1662233
Abstract
The flow stress as a function of strain was measured in the temperature range from 77 to 400°K at strain rates between 10−1 and 10−6 sec−1 for single crystals of molybdenum. The flow stress is characterized by a rate-temperature parameter, defined through a general rate equation for low temperature thermally activated deformation processes in bcc structures. This parameter was utilized for testing the mechanical equation of state and in explaining the failure of such an equation in molybdenum. Whereas the rate of work hardening was found to be uniquely defined by strain and the parameter, the flow stress depended in addition on the thermal-mechanical history of the material.This publication has 7 references indexed in Scilit:
- A phenomenological theory for plastic deformation of polycrystalline metalsActa Metallurgica, 1970
- Equivalence of εdot and T in plastic deformation of B.C.C. metalsScripta Metallurgica, 1970
- Electron Microscopic Investigation of the Dislocation Structure in Molybdenum Single Crystals Deformed in Tension at 293 and 493 °KPhysica Status Solidi (b), 1970
- Slip Line Pattern and Active Slip Systems of Tungsten and Molybdenum Single Crystals Weakly Deformed in Tension at Room TemperaturePhysica Status Solidi (b), 1968
- Dislocation mechanisms in single crystals of tantalum and molybdenum at low temperaturesActa Metallurgica, 1967
- Deformation structures in zone-melted molybdenumPhilosophical Magazine, 1964
- Dynamic recovery from strain-hardening in polycrystalline copper and aluminiumPhilosophical Magazine, 1962