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Failure Mechanisms |
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· In the Dislocation Creep region,
the diffusion
controlled climb process annihilates the outer dislocation
loops of active Frank-Reed
sources, permitting the sources to release more loops which
then expand and permit plastic deformation to continue. |
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· Climb
processes that are diffusion
controlled determine the motion of the dislocations, and hence the creep
rate, in this temperature and stress range. |
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From:
Courtney, |
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