6 A Brief Aside About Dislocations (10) Imagine that we examine one of the alloys using electron microscopy and see the following dis- location, which has become pinned between two precipitates. (This is actually something called a Frank-Reed source and is important because it spawns other dislocations, but that's beyond the scope of this course). Identify which parts of the dislocation have edge character, which have screw character, and which have mixed character. (10) 5 6 1 3