THE EFFECT OF PRELIMINARY RECOVERY ON THE RECRYSTALLIZATION KINETICS OF DEFORMED METALS
Abstract
X-ray and microstructural methods were used to study the effect of preliminary annealing on subsequent recrystallization in single crystals of a number of pure metals (Cu, Ni, Nb, W, Mo). After weak deformations preliminary recovery of the samples leads to a delay and, sometimes, even to complete prevention of subsequent recrystallization. Single crystals of metals with body-centred lattices may be deformed by 30% and more without recrystallization during subsequent annealing, provided there is a definite geometry of plastic deformation. The effect of inhibition of recrystallization by preliminary annealing was observed earlier by Semell and Machlin on studying a weakly bent silver single crystal, and they connected it with the vanishing of excess vacancies during preliminary annealing. It is shown in this paper that in the investigated metals preliminary annealing inhibits subsequent recrystallization owing to polygonization rather than to vacancy rest. After strong (80%) deformations preliminary polygonization did not affect the subsequent course of recrystallization.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 05, 1966
- Accession Number
- AD0643925
Entities
People
- L. N. Larikov
- O. E. Zasimchuk
- Zh. Ya. Kutikhina
Organizations
- National Air and Space Intelligence Center