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In‐situ investigation of grain boundary and triple junction kinetics in aluminium – 10 p.p.m. magnesium
Author(s) -
Mattissen D.,
Wærø A.,
Molodov D. A.,
Shvindlerman L. S.,
Gottstein G.
Publication year - 2004
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.0022-2720.2004.01281.x
Subject(s) - aluminium , magnesium , kinetics , in situ , triple junction , grain boundary , metallurgy , materials science , chemistry , physics , microstructure , optoelectronics , classical mechanics , organic chemistry
Summary A special technique for in‐situ observation and recording of triple junction motion is introduced. The described method makes it possible to study the motion of connected grain boundaries, i.e. triple junctions and their geometry. The results of an investigation of the steady‐state motion of grain boundary systems with triple junctions in aluminium–magnesium are presented. The analysed triple junctions show a distinctive deviation of contact angle from the equilibrium value 120° as assumed for the deviation of the Von Neumann–Mullins relation. The type of triple junction can have an essential influence on grain boundary motion and thus on grain growth.