Effect of cyclic deformation on strain enhanced grain growth during superplastic flow
- 1 October 1989
- journal article
- research article
- Published by SAGE Publications in Materials Science and Technology
- Vol. 5 (10) , 999-1004
- https://doi.org/10.1179/026708389790339628
Abstract
Generally, superplastic deformation is accompanied by concurrent grain growth. In this paper, the effect of strain reversals on this process is investigated using two materials. In the first, Coronze 638, a precipitate strengthened copper alloy, no effect is found. In the second, Zn–22Al (wt-%) eutectoid, a distinct retardation of grain growth occurs after each strain reversal. A new model based on the ability of grain boundary sliding to overcome the Zener drag process is developed and found to be consistent with the experimental results. MST/731Keywords
This publication has 9 references indexed in Scilit:
- Diffusion-accommodated flow and superplasticityPublished by Elsevier ,2003
- The role of matrix dislocations in the superplastic deformation of a copper alloyActa Metallurgica, 1986
- Large strain behaviour of a superplastic copper alloy—I. DeformationActa Metallurgica, 1984
- An examination of grain boundary migration during high temperature fatigue of aluminum—I. Microstructural observationsActa Metallurgica, 1983
- Factors influencing ductility in the superplastic Zn-22 Pct Al eutectoidMetallurgical Transactions A, 1977
- Deformation enhanced grain growth in a superplastic Sn-1% Bi alloyActa Metallurgica, 1973
- Flow stress and microstructure in superplastic 60/40 brassJournal of Materials Science, 1973
- Superplastic behaviour of the industrial Cu7wt.%P alloyScripta Metallurgica, 1972
- The variation in flow stress and microstructure during superplastic deformation of the Al-Cu eutecticJournal of Materials Science, 1971