Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9796245 | Materials Science and Engineering: A | 2005 | 6 Pages |
Abstract
Influence of cryo-rolling reduction and annealing of commercially pure (CP) Al is evaluated in four aspects: microstructure, mechanical properties, electrical conductivity and general corrosion. It is shown that by selecting optimal cryo-rolling reduction and subsequent annealing condition result in ultrafine grains in CP Al with good combination of high strength and ductility. Electrical conductivity of the cryo-rolled samples decreased due to increased number of the electron scattering centers (lattice defects and grain boundary area). However, optimization of cryo-rolling and annealing treatment could restore the conductivity coupled with high strength in CP Al. Corrosion behaviour of cryo-rolled CP Al improved after annealing treatment. High dissolution rate and low thermal stability of the ultrafine grain structure could override the anticipated advantage of uniform corrosion in ultrafine grain CP Al.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Nikhil Rangaraju, T. Raghuram, B. Vamsi Krishna, K. Prasad Rao, P. Venugopal,