Hardening mechanisms in metals with foreign atoms
- 1 January 1988
- journal article
- Published by EDP Sciences in Revue de Physique Appliquée
- Vol. 23 (4) , 395-404
- https://doi.org/10.1051/rphysap:01988002304039500
Abstract
A survey of possible mechanisms impeding and influencing glide processes in metals with impurities (solutes and particles) is given. After putting together the elementary interactions, the threshold stress for a single dislocation is considered, its successful calculations for T = 0 and the effects of thermal fluctuations are summarized. Then the behaviour of many dislocations moving either independently of each other or in correlated groups is discussed for solid solutions in stage I, the simultaneous occurrence of hardening and softening mechanisms in pointed out. Finally, the dislocation-dislocation interactions of strain hardening are taken into account. In general, they superimpose on the dislocation-impurity interactions not in a simply additive, but in a multiplicative wayKeywords
This publication has 21 references indexed in Scilit:
- Quantum effects in low temperature plastic deformationCrystal Research and Technology, 1984
- Dynamic simulation of solution hardeningJournal of Applied Physics, 1978
- The statistical problem of hardeningJournal of the Less Common Metals, 1972
- Statistische theorien der mischkristallhärtungActa Metallurgica, 1972
- Dislocation motion in the normal and the superconducting statesScripta Metallurgica, 1971
- Dislocation Inertial Effects in the Plasticity of SuperconductorsPhysical Review B, 1971
- A Statistical Theory of Solid Solution HardeningPhysica Status Solidi (b), 1970
- Die formänderung von ausscheidungen durch diffusion im spannungsfeld von versetzungenActa Metallurgica, 1968
- Dislocation movement through random arrays of obstaclesPhilosophical Magazine, 1966
- Solution hardeningActa Metallurgica, 1961