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- Title
Mechanical Properties of Nanocrystalline and Ultrafine-Grained Nickel with Bimodal Microstructure.
- Authors
Qian, Tao; Karaman, Ibrahim; Marx, Michael
- Abstract
The aim of this work was to use bimodal microstructures to improve ductility and fatigue resistance of nanocrystalline (NC) and ultrafine-grained (UFG) materials while keeping the materials' high strength. Nickel plates produced by pulsed electrodeposition were used as NC base material while as UFG base material high-purity nickel was processed by equal channel angular pressing. After different heat treatments, bimodal microstructures could be realized in the size ranges of NC/UFG and UFG/coarse grained (CG). While the UFG/CG nickel revealed an improved ductility but little influence on the fatigue resistance, the NC/UFG nickel shows an extraordinary fatigue resistance.
- Subjects
NICKEL; MECHANICAL behavior of materials; DUCTILITY; CRYSTAL structure; MICROSTRUCTURE; ELECTROPLATING
- Publication
Advanced Engineering Materials, 2014, Vol 16, Issue 11, p1323
- ISSN
1438-1656
- Publication type
Article
- DOI
10.1002/adem.201300570