Strengthening Mechanisms in NiAl Bronze: Hot Deformation by Rolling and Friction-Stir Processing

• DOI: 10.1007/s11661-012-1181-x
• Publication Date: 2012-05-16T00:00:56Z
• Authors: Sarath K. Menon; Frank A. Pierce; Brian P. Rosemark; Keiichiro Oh-Ishi; Srinivasan Swamin...; Terry R. McNelley
• Keywords: Friction Stir Processing; Isothermal process; Bronze

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