Transition Temperature

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Transition Temperature

</dt>
1. An arbitrarily defined temperature within the temperature range in which metal fracture characteristics determined usually by notched tests are changing rapidly such as from primarily fibrous (shear) to primarily crystalline (cleavage) fracture. </dd>
2. The arbitrarily defined temperature in a range in which the ductility of a material changes rapidly with temperature. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use