Metals and metal alloys
Internal friction measurement
Article REF: P1310 V1
Metals and metal alloys
Internal friction measurement

Authors : Juan-Jorge MARTINEZ-VEGA, André RIVIERE

Publication date: March 10, 2000 | Lire en français

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6. Metals and metal alloys

Numerous mechanisms have been associated with internal friction peaks in this type of material. These include:

  • atomic rearrangements induced by the application of a stress ;

  • dislocation relaxation ;

  • grain boundary movement ;

  • phase transformations, etc.

6.1 Internal friction due to point defects

A point fault is likely to produce internal friction if its presence locally induces a distortion with a symmetry lower than that of the network.

This is the case of Snoek relaxation [5] which occurs in insertion alloys...

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