Secondary Recrystallization of Pure Molybdenum Wires
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- Category: Molybdenum knowledge
- Published on 06 August 2013
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The secondary recrystallization of drawn pure molybdenum wires has been studied; a particular attention has been paid on the effect of temperature gradients in the annealing process.
The secondary recrystallized grains being very elongated along the wire axis have been obtained by annealing in a moderate temperature gradient furnace at about 2000°C.
Orientations of the wire axis of the secondary recrystallized grains are mainly 023 or 135, while 011 oriented grains are less frequently observed.
In contrast, the primary recrystallized texture consists of the 011 main component and 023-012 sub-component; many 011 oriented grains have large grain sizes.
The observed discrepancy in orientation between the primary and secondary recrystallized grains is explained in terms of the difference in grain boundary mobilities which depend on the character of grain boundaries.
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