Details

Autor(en) / Beteiligte

• Shen, Li
• Guo, Y. J.
• Shi, Z. M.
• Jawaid, M.
• Kenawy, El-R.

Titel

Microstructure and Mechanical Properties of As-cast 5182 Aluminum alloy Modified with Al-RE and Al-5Ti-1B Master Alloys

Ist Teil von

• MATEC Web of Conferences, 2016, Vol.67, p.5026

Ort / Verlag

Les Ulis: EDP Sciences

Erscheinungsjahr

2016

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• The modification effects of Al-RE (rare earth) and Al-5Ti-1B master alloys on the microstructure and mechanical properties of as-cast 5182 aluminum alloys were studied. Experimental results show that both of the modifications refine the α-Al grains and the Mg2Si and (FeMn)Al6 eutectics. The Mg2Al3 phases exist in the forms of thin flake (β′-Mg2Al3) and small granule (β-Mg2Al3) for the unmodified 5182 aluminum alloy. Modifications with 0.1 wt% Al-5Ti-1B and 0.2 wt% Al-RE yield longer flakes of β′-Mg2Al3 and small amounts of β-Mg2Al3 granules. The other contents of the modifiers reduce the longer flakes of β′-Mg2Al3 but facilitate formation of the particles and islands of β-Mg2Al3. The 0.2 wt% of Al-RE modification yields the finest microstructure and the largest ductility; the 0.2 wt% of Al-5Ti-1B modification has better microstructure and the highest tensile strength.