| EPSRC Reference: |
GR/M71251/01 |
| Title: |
NANOSCALE ENRICHMENT OF ALLOYING ELEMENTS: RELEVANCE TO CORROSION, FILMING, SURFACE TREATMENT & PERFORMANCE |
| Principal Investigator: |
Thompson, Professor GE |
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| Department: |
Corrosion and Protection Centre |
| Organisation: |
UMIST |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 July 1999 |
Ends: |
31 March 2003 |
Value (£): |
318,149
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
Materials Processing |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Electronics |
| Transport Systems and Vehicles |
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Summary on Grant Application Form |
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Oxide film growth and surface treatments are critical to the practical application of alloys. Recent studies by the applicants of model binary aluminium alloys have revealed that such processes can result in high enrichments of alloying element in a thin layer of alloy of a few nm thickness, formed as a direct consequence of film growth, beneath a thin oxide film. Following from this work a new model of alloy oxidation has been proposed. Important processes include accumulation of alloying element atoms beneath the oxide film, clustering of alloying element atoms in the enriched layer, localized incorporation of alloy species into the oxide film at the alloy/film interface and migration of species through the film. The oxidation processes, revealed precisely for the first time, are important to the behaviour including corrosion of practical alloys, although such alloys have so far not been investigated. The programme seeks to extend the scientific understanding of alloy oxidation by further studies of model alloy systems, including ternary and higher aluminium alloys and also non-aluminium-based alloys. The funding will assist the technical improvement of existing aluminium alloys by applying the new knowledge to commercial aluminium alloys particularly those of interest to the aerospace industry.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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