Wetting of grain boundaries in Al by the solid Al3Mg2 phase
Boris B. StraumalInstitute of Solid State Physics Russian Academy of Sciences, 142432, Chernogolovka, RussiaB. BaretzkyOlga A. KogtenkovaInstitute of Solid State Physics Russian Academy of Sciences, 142432, Chernogolovka, RussiaA. B. StraumalInstitute of Solid State Physics Russian Academy of Sciences, 142432, Chernogolovka, RussiaAnatolie SidorenkoInstitute of Applied Physics, LISES AS RM, Academiei 5, Kishinev, MD, 2028, Moldova
2009en
ABI
Annotatsiya
The microstructure of binary Al100−x –Mg x (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 T wsmin = 220 °C. Above T wsmax = 410 °C all Al/Al GBs are completely wetted by the Al3Mg2 phase.
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