Effects of Fe and Ni additions on emerging Al–4·5Cu–1·5Mg powder metallurgy alloy
| Autor: | Ian W. Donaldson, E D Moreau, D P Paul Bishop, R.L. Hexemer |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Canadian Metallurgical Quarterly. 52:380-390 |
| ISSN: | 1879-1395 0008-4433 |
| DOI: | 10.1179/1879139513y.0000000072 |
| Popis: | In recent laboratory studies, a method designed to modify an emerging Al–Cu–Mg powder metallurgy alloy with Fe and/or Ni additions was successfully developed. The objectives of this research were designed to expand upon this work with an emphasis on characterising the industrial processing behaviour and thermal stability of the alloy with and without additions of these transition metals. All powder compacts exhibited an industrial sintering response that mirrored prior laboratory findings thereby confirming commercial viability. Subsequently, tensile specimens were machined from industrially sintered bars, heat treated to the T6 temper and then subjected to various conditions of thermal exposure at temperatures up to 280°C. Differential scanning calorimetry (DSC) data confirmed that Fe/Ni additions reduced the precipitation kinetics of the S-type phases responsible for peak strengthening at temperatures |
| Databáze: | OpenAIRE |
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