MSE_442_Lecture_23_Nov 18 2013

30 example 31 example the maximum pinning force is

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Unformatted text preview: et us consider a system of fine second- phase parGcles (also referred to as fine inclusions or precipitates) dispersed randomly in a polycrystalline solid in which they are insoluble and immobile. q༇  If a grain boundary moving under the driving force of its curvature encounters an inclusion, it will be held up by the parGcle unGl the moGon elsewhere has proceeded sufficiently far for it to break away. q༇  If there are a sufficient number of parGcles, we might expect that the boundary will be pinned when...
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