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Article Dans Une Revue Scripta Materialia Année : 2021

Imparting high-temperature grain stability to an Al-Mg alloy

Résumé

Al alloys, despite their excellent strength-to-weight ratio, cannot be used at elevated temperatures because of microstructural instability owing to grain growth and precipitate coarsening, thus, leading to a drastic loss in their strength. In this work, we have attempted to address the issue of grain growth by introducing in-situ formed polymer derived ceramics in an Al-Mg alloy. A stable grain structure with minimal loss in hardness when exposed to 450 °C and 550 °C for 1 hour was obtained due to the particle pinning of the grain boundaries by the Zener mechanism.
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Dates et versions

hal-02961145 , version 1 (08-10-2020)

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Abhishek Pariyar, L.S. Toth, Satish V. Kailas, Laurent Peltier. Imparting high-temperature grain stability to an Al-Mg alloy. Scripta Materialia, 2021, 190, pp.141-146. ⟨10.1016/j.scriptamat.2020.08.035⟩. ⟨hal-02961145⟩
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