Wetting of grain boundaries in Al by the solid Al3Mg2 phase

STRAUMAL, B. B.; BARETZKY, B.; KOGTENKOVA, O. A.; STRAUMAL, A. B.; SIDORENKO, A. S.

Wetting of grain boundaries in Al by the solid Al3Mg2 phase

STRAUMAL, B. B.; BARETZKY, B.; KOGTENKOVA, O. A.; STRAUMAL, A. B.; SIDORENKO, A. S.

URI: https://doi.org/10.1007/s10853-009-4014-6
http://repository.utm.md/handle/5014/12245

Date: 2010

Abstract:

The microstructure of binary Al100−x–Mgx(x = 10, 15, 18 and 25 wt%) alloys after long anneals (600–4000 h) was studied between 210 and 440 °C. The transition from incomplete to complete wetting of Al/Al grain boundaries (GBs) by the second solid phase Al3Mg2 has been observed. The portion of completely wetted GBs increases with increasing temperature beginning from Twsmin = 220 °C. Above Twsmax = 410 °C all Al/Al GBs are completely wetted by the Al3Mg2 phase.