Observations of grain boundary structure in submicrometer-grained Cu and Ni using high-resolution electron microscopy
- 1 February 1998
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 13 (2) , 446-450
- https://doi.org/10.1557/jmr.1998.0057
Abstract
Submicrometer-grained (SMG) structures were produced in Cu and Ni using an intense plastic straining technique, and the grain boundaries and their vicinities were observed by high-resolution electron microscopy. The grain boundaries exhibited zigzag configurations with irregular arrangements of facets and steps, and thus they were found to be in a high-energy nonequilibrium state. A similar conclusion was reached earlier for SMG Al–Mg solid solution alloys which have much lower melting points than Cu and Ni, suggesting that nonequilibrium grain boundaries are a typical feature of metals processed by intense plastic straining.Keywords
This publication has 10 references indexed in Scilit:
- Structure and deformaton behaviour of Armco iron subjected to severe plastic deformationActa Materialia, 1996
- Microhardness measurements and the Hall-Petch relationship in an AlMg alloy with submicrometer grain sizeActa Materialia, 1996
- Enhanced grain growth in an Al-Mg alloy with ultrafine grain sizeMaterials Science and Engineering: A, 1996
- An investigation of grain boundaries in submicrometer-grained Al-Mg solid solution alloys using high-resolution electron microscopyJournal of Materials Research, 1996
- An investigation of microstructural stability in an AlMg alloy with submicrometer grain sizeActa Materialia, 1996
- An investigation of ductility and microstructural evolution in an Al−3% Mg alloy with submicron grain sizeJournal of Materials Research, 1993
- Structure and properties of ultrafine-grained materials produced by severe plastic deformationMaterials Science and Engineering: A, 1993
- Dilatometric analysis of aluminium alloy with submicrometre grained structureScripta Metallurgica et Materialia, 1992
- Plastic deformation of alloys with submicron-grained structureMaterials Science and Engineering: A, 1991
- Nanocrystalline materialsProgress in Materials Science, 1989