Structures and Strength of Gradient Nanostructures

Niels Hansen (Invited author), Xiaodan Zhang (Invited author), Xiaoxu Huang (Invited author)

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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. The nanostructure was produced in Cu by applying a very high strain in friction. The stress and strain decrease with increasing distance from the surface forming a gradient structure. In this study [2], by shot peening of a low carbon steel a gradient structure has been produced extending to about 1 mm below the surface. A number of strengthening mechanisms have been analyzed as a basis for a calculation of the stress and strain as a function of the distance from the surface. The results are evaluated by a finite element investigation of shot peening.
Original languageEnglish
Publication date2016
Number of pages1
Publication statusPublished - 2016
EventTMS 2016 145th ANNUAL MEETING & EXHIBITION - Nashville, United States
Duration: 14 Feb 201618 Feb 2016


CountryUnited States
Internet address

Bibliographical note

Part of: Proceedings - 2016 TMS Annual Meeting & Exhibition, 2016.
Presented at: Ultrafine Grained Materials IX; 2016 TMS Annual Meeting & Exhibition, Nashville.

Cite this

Hansen, N., Zhang, X., & Huang, X. (2016). Structures and Strength of Gradient Nanostructures. Abstract from TMS 2016 145th ANNUAL MEETING & EXHIBITION, Nashville, United States.