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When α > 10-15° the boundary is known as a_______ (“α” is the angular misorientation across the boundary)

When α > 10-15° the boundary is known as a_______ (“α” is the angular misorientation across the boundary) Correct Answer Random high-angle grain boundary

When α > 10-15° the boundary is known as a Random high-angle grain boundary. The difference in structure between low-angle and high-angle grain boundaries can be lucidly illustrated by the bubble-raft model. High angle boundaries contain large areas of poor fit and have a relatively open structure.

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