Plastic strain accommodation and acoustic emission during melting of embedded particles

Details Plastic strain accommodation and acoustic emission during melting of embedded particles Plastic strain accommodation and acoustic emission during melting of embedded particles

2011-10-08

arxiv.org/abs/1110.1684v1

Physics

Condensed Matter

Materials Science

4 pages, 3 figures, 1 table

Scientific paper

Melting point phenomena of micron-sized indium particles embedded in an aluminum matrix were studied by means of acoustic emission. The acoustic energy measured during melting increased with indium content. Acoustic emission during the melting transformation suggests a dislocation generation mechanism to accommodate the 2.5% volume strain required for melting of the embedded particles. A geometrically necessary increase in dislocation density of 4.1 x 10^13 m^-2 was calculated for the 17 wt% indium composition.

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