An investigation of grain boundaries in submicrometer-grained Al-Mg solid solution alloys using high-resolution electron microscopy
1996 ◽
Vol 11
(8)
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pp. 1880-1890
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Keyword(s):
High-resolution electron microscopy was used to examine the structural features of grain boundaries in Al–1.5% Mg and Al–3% Mg solid solution alloys produced with submicrometer grain sizes using an intense plastic straining technique. The grain boundaries were mostly curved or wavy along their length, and some portions were corrugated with regular or irregular arrangements of facets and steps. During exposure to high-energy electrons, grain boundary migration occurred to reduce the number of facets and thus to reduce the total boundary energy. The observed features demonstrate conclusively that the grain boundaries in these submicrometer-grained materials are in a high-energy nonequilibrium configuration.
1998 ◽
Vol 13
(2)
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pp. 446-450
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1996 ◽
Vol 54
◽
pp. 674-675
1995 ◽
Vol 53
◽
pp. 524-525
1995 ◽
Vol 53
◽
pp. 172-173
1990 ◽
Vol 24
(1)
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pp. 201-206
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1985 ◽
Vol 24
(Part 1, No. 7)
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pp. 896-897
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