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Plastic Deformation Behavior of Micro-Alloyed Cold Forging Steel
Advanced Materials Research, 2007Micro-alloyed cold forging steel has been developed to rule out heat treatment process before forging in order to save energy consumption. These non heat-treated cold forging steels utilize the work hardening during cold working to ensure the mechanical properties.
Yong Nam Kwon +2 more
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Failure of carbon steels as a result of cold plastic deformation
Journal of Mechanical Working Technology, 1985Abstract This paper presents an extensive survey of literature on the theory of deformation and failure of inhomogenous materials, and also literature concerning deformation and fracture of carbon steels is reviewed. Types of cracks occurring in 0.38% C steel after normalizing and toughening are discussed: cementite particles are very crack-resistant
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Influence of cold plastic deformation of austenitic grain size in steel
Metal Science and Heat Treatment, 19921. The ferritic grain size Lα of 15Kh steel depends upon the degree of deformation ɛ and the original grain size before deformation. In fine-grained steel deformation with degrees close to the critical leads to coarsening of the grains according to the coalescence mechanism and in coarse-grained to refinement of them.
S. S. D'yachenko, E. A. Kuz'menko
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Effect of preliminary cold plastic deformation on the properties of maraging steels
Metal Science and Heat Treatment, 1975Cold plastic deformation (rolling and forging) increases the strength of quenched maraging steels with no substantial reduction of the ductility. The effect of strain hardening is more evident after subsequent aging, the preliminary cold deformation leading to acceleration of aging processes, which is due to earlier formation of intermetallic phases.
A. D. Kazenina +2 more
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Mechanisms of plastic deformation for powder materials in cold working
Science in China Series E, 2003To deal with the discontinuity of particulate media and subsequent uncertainty of stress, based on the probability theory for mechanics of particulate media, Mohr-Coulomb yield criterion of particulate media, and the theory of crystal deformation, we put forward the statistical mechanisms of deformation of powder materials in cold working and mechanism
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Cold joining of rotor shaft with flange by using plastic deformation
CIRP Annals, 2012Abstract A plastic cold joining method of a rotor shaft with a flange was developed to produce automobiles axle parts. In this process, a high strength shaft with serrated teeth was indented into the hole of a thick disc at room temperature. The serrated shaft acts as a tool to indent to the hole.
K. Kitamura +4 more
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Strain hardening of sintered iron during cold plastic deformation
Metal Science and Heat Treatment, 19801. Upset forging of sintered materials was found to be effective to increase the density and thus the strength. Quantitative relationships were obtained that determine the parameters of cold plastic deformation of sintered iron differing in original density. 2.
V. D. Kal'ner +2 more
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Strength of Materials, 1999
We propose an approximate semiphenomenological model of the joint process of cold plastic deformation and fracture of metals. Within the framework of this model, for 10kp, 20kp, 20G2R, and 38KhGNM steels, we show that moving dislocations overcome barriers through a force process.
V. M. Greshnov +2 more
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We propose an approximate semiphenomenological model of the joint process of cold plastic deformation and fracture of metals. Within the framework of this model, for 10kp, 20kp, 20G2R, and 38KhGNM steels, we show that moving dislocations overcome barriers through a force process.
V. M. Greshnov +2 more
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High-Energy Cold Plastic Deformation, Diffusion, and Mechanochemical Synthesis
Metal Science and Heat Treatment, 2004The mechanism of generation and motion of interstitial atoms is a possible way of mass transfer in intense plastic deformation at a high load and low enough temperature. Interstitial atoms produce an effect of additional mechanical activation of diffusion.
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SOME FUNDAMENTAL STUDIES IN THE COLD COMPACTION OF PLASTICALLY DEFORMING SOLIDS
Powder Metallurgy, 1960AbstractStudies have been made of the behaviour under compression of materials which exhibit plastic deformation at normal temperatures, as exemplified by indium and lead. In particular, attention has been focused on the effects of die-wall friction and on the influence of the relative volume.
D. TRAIN, J. A. HERSEY
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