| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1575972 | Materials Science and Engineering: A | 2013 | 9 Pages |
Abstract
Al7Si0.5Cu0.3Mg(0.3-1)Ni alloys were investigated for elevated temperature performance. It was found that while the yield strength of the overaged alloys at 300 °C increased with Ni, the creep resistance decreased. Microstructural observations revealed that the brittle interdendritic Τ-Al9FeNi intermetallics undergo severe cracking in the early stages of creep deformation, which weakens the interdendritic regions and leads to a decrease in creep resistance. This study shows that Mn additions modify the Τ-phase preventing cracking during creep and increase the creep resistance.
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Authors
A.R. Farkoosh, M. Pekguleryuz,