Strengthening Mechanisms in NiAl Bronze: Hot Deformation by Rolling and Friction-Stir ProcessingReport as inadecuate




Strengthening Mechanisms in NiAl Bronze: Hot Deformation by Rolling and Friction-Stir Processing - Download this document for free, or read online. Document in PDF available to download.

Metallurgical and Materials Transactions A

, Volume 43, Issue 10, pp 3687–3702

First Online: 17 May 2012

Abstract

Microstructures produced by isothermal hot rolling of a NiAl bronze material were evaluated by quantitative microscopy methods and parameters describing the contributions of precipitate dispersions, grain size, solute content, and dislocation density to the yield strengths of the individual constituents of microstructure were determined. Models for the strengths of the individual constituents were combined to predict the temperature dependence of the yield strength as a function of hot rolling temperature, and the prediction was found to be in good agreement with measured yield strengths. The models were applied to microstructures in a stir zone produced by multipass friction-stir processing FSP and, again, found to predict measured yield strengths with high accuracy. Such models may aid in assessing the role of microstructure gradients produced during FSP and other processes.

Manuscript submitted August 17, 2011.

Download fulltext PDF



Author: Sarath K. Menon - Frank A. Pierce - Brian P. Rosemark - Keiichiro Oh-Ishi - Srinivasan Swaminathan - Terry R. McNelley

Source: https://link.springer.com/







Related documents