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Article Dans Une Revue Metallurgical and Materials Transactions A Année : 2011

In-Situ Microtomographic Characterization of Single-Cavity Growth During High-Temperature Creep of Leaded Brass

Résumé

Synchrotron microtomography was used for in-situ characterization of high-temperature creep damage in leaded brass. Applying image registration to subsequent tomographic reconstructions, the volumetric growth rate of single cavities with equivalent radii between 2 and 4.3 mu m was assessed. We conclude from the volume dependence of the growth rates that both the viscous flow and grain boundary (GB) diffusion mechanisms influence void growth. We show that void growth in leaded brass is retarded by negative stress triaxiality, which develops in the matrix during heating the specimen to the deformation temperature.

Dates et versions

hal-00857873 , version 1 (04-09-2013)

Identifiants

Citer

A. Isaac, Kristof Dzieciol, F. Sket, András Borbély. In-Situ Microtomographic Characterization of Single-Cavity Growth During High-Temperature Creep of Leaded Brass. Metallurgical and Materials Transactions A, 2011, 42A (10), pp.3022-3030. ⟨10.1007/s11661-011-0781-1⟩. ⟨hal-00857873⟩

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