Sharma, Garima ; Sarkar, Apu ; Varshney, Jalaj ; Ramamurty, U. ; Kumar, Ajay ; Gupta, S. K. ; Chakravartty, J. K. (2011) Effect of irradiation on the microstructure and mechanical behavior of nanocrystalline nickel Scripta Materialia, 65 (8). pp. 727-730. ISSN 1359-6462
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.scriptamat.2011.07.021
Abstract
The effect of 4.0 MeV proton irradiation on the microstructure and mechanical properties of nanocrystalline (nc) nickel was investigated. The irradiation damage induced in the sample was of the order of 0.004 dpa. Transmission electron microscopy of irradiated samples indicated the presence of dislocation loops within the grains. An increase in hardness and strain-rate sensitivity (m) of nc-Ni with irradiation was noted. The rate-controlling deformation mechanism in irradiated nc-Ni was identified to be interaction of dislocations with irradiation-induced defects.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Nickel; Nanostructure; Nanocrystalline Materials; Nanoindentation; Irradiation |
| ID Code: | 62558 |
| Deposited On: | 22 Sep 2011 03:16 |
| Last Modified: | 22 Sep 2011 03:16 |
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