Abstract
Wetting of grain boundaries (GB's) by liquid Cu in an Fe-30wt%Mn-10wt%Cu alloy has been studied as a function of the five macroscopic degrees of freedom (DoF's) of grain boundary character. These were chosen to consist of two grain boundary normals (or bounding planes) and a twist angle. The five DoF's of 975 GB's were determined by electron backscattering patterns and serial sectioning, after annealing at 1120°C, and each GB was categorized as being either wet, dry, or mixed (i.e. partly wet and partly dry). Interpretation of the wetting behavior by means of a model of GB energy, which includes consideration of the five macroscopic DoF's, led to correct predictions of wet and dry behavior in 80% of the GB's studied.
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Takashima, M., Wynblatt, P. & Adams, B. Correlation of Grain Boundary Character with Wetting Behavior. Interface Science 8, 351–361 (2000). https://doi.org/10.1023/A:1008727728076
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DOI: https://doi.org/10.1023/A:1008727728076