Real-time in situ nanoclustering during initial stages of artificial aging of Al–Cu alloys.

Autor:	Zatsepin, Nadia A., Dilanian, Ruben A., Nikulin, Andrei Y., Gao, Xiang, Muddle, Barry C., Matveev, Victor N., Sakata, Osami
Předmět:	ALUMINUM-copper alloys METAL crystal growth CLUSTERING of particles NUCLEATION POINT defects X-ray diffraction
Zdroj:	Journal of Applied Physics; Jan2010, Vol. 107 Issue 2, p024303-024309, 6p, 1 Color Photograph, 1 Diagram, 3 Graphs
Abstrakt:	We report an experimental demonstration of real-time in situ x-ray diffraction investigations of clustering and dynamic strain in early stages of nanoparticle growth in Al–Cu alloys. Simulations involving a simplified model of local strain are well correlated with the x-ray diffraction data, suggesting a redistribution of point defects and the formation of nanoscale clusters in the bulk material. A modal, representative nanoparticle size is determined subsequent to the final stage of artificial aging. Such investigations are imperative for the understanding, and ultimately the control, of nanoparticle nucleation and growth in this technologically important alloy. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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