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- Title
Friction Stir-Processed Thermally Stable Immiscible Nanostructured Alloys.
- Authors
Komarasamy, Mageshwari; Mishra, Rajiv; Mukherjee, Sundeep; Young, Marcus
- Abstract
Friction stir processing of a ternary immiscible alloy was investigated as a pathway to thermally stable nanostructured alloys. The processed alloy was characterized using x-ray diffraction (XRD), scanning electron microscopy (SEM), nano-indentation, and thermal stability analysis. Both XRD and high-magnification SEM confirmed the formation of solid solution at the shear edge of the friction stir layer. Microstructural inhomogeneity was observed in the processed region that resulted in hardness variation. Upon annealing treatment, a significant improvement in hardness was observed at 200°C that was due to the formation of nano-precipitates. Remarkably, the Cu-Ag-Nb immiscible system displayed exceptional thermal stability up to 500°C.
- Subjects
ALLOY testing; THERMAL stability; NANOSTRUCTURED materials; FRICTION; ELECTRON microscopy
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2015, Vol 67, Issue 12, p2820
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-015-1641-z