Abstract
We hypothesised that a nanostructure can bring about dramatic improvements in the oxidation resistance of low chromium iron-chromium alloys at moderate temperatures. A nanocrystalline Fe-10wt%Cr alloy was found to undergo oxidation at a rate that was an order of magnitude lower than its microcrystalline counterpart. Importantly, the oxidation resistance of nanocrystalline Fe-10wt%Cr alloy was comparable to that of the common corrosion-resistant microcrystalline stainless steels. We outline the difficulties in processing nanocrystalline iron-chromium ferritic alloys as well as the success in circumventing them. The recently reported roles of nanocrystalline structures in oxidation resistance of a few other systems are also considered.
Original language | English |
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Title of host publication | Corrosion Protection and Control Using Nanomaterials |
Editors | Viswanathan S. Saji, Ronald Cook |
Place of Publication | Cambridge UK |
Publisher | Woodhead Publishing Limited |
Pages | 129-145 |
Number of pages | 17 |
ISBN (Electronic) | 9780857095800 |
ISBN (Print) | 9781845699499 |
DOIs | |
Publication status | Published - Feb 2012 |
Keywords
- Crystalline and intercrystalline components
- Microcrystalline
- Nanocrystalline
- Oxidation corrosion resistance
- Thermal stability