Stress and Strain Gradients in a Low Carbon Steel Deformed under Heavy Sliding

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A recent study [1] has shown that a microstructure can be refined to a record low of 5 nm and that dislocation glide is still a controlling mechanism at this length scale. In this study, by heavy rotatory sliding of a low carbon steel a gradient structure has been produced extending to about 2.5 mm below the surface reducing the structural scale to the nanometer dimension and increasing the strength to extreme values by dislocation and boundary strengthening. The microstructure and texture gradient are analyzed and stress and strain gradients produced by plastic deformation are evaluated based on the deformation microstructure using the classic stress-structure relationship. Computational and materials modelling has been advanced from bulk to gradient structures leading to dissemination of constitutive stress-strain equations in gradient structures.
Original languageEnglish
Publication date2017
Publication statusPublished - 2017
EventTMS 2017 : 146th Annual Meeting and Exhibition - San Diego Convention Center and Marriott Marquis & Marina, San Diego, United States
Duration: 26 Feb 20172 Mar 2017


ConferenceTMS 2017
LocationSan Diego Convention Center and Marriott Marquis & Marina
CountryUnited States
CitySan Diego

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