Aichmayer, Barbara ; Fratzl, Peter ; Puri, Sanjay ; Saller, Gabriele (2003) Surface-directed spinodal decomposition on a macroscopic scale in a nitrogen and carbon alloyed steel Physical Review Letters, 91 (1). 015701_1-015701_4. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v91/i1/e015701
Related URL: http://dx.doi.org/10.1103/PhysRevLett.91.015701
Abstract
Interactions with the macroscopic specimen surface can profoundly modify phase-separation processes. This has previously been observed in liquids and polymer films and is theoretically described by the theory of surface-directed spinodal decomposition (SDSD). Here we report first observations of SDSD in a metallic alloy on a macroscopic scale. The influence of the surface leads to the development of concentric domains extending over the whole 10 mm thick cylindrical steel specimen, due to long-range interactions via elastic stresses and long-range diffusion of the interstitial elements nitrogen and carbon.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 36301 |
| Deposited On: | 25 Apr 2011 07:19 |
| Last Modified: | 25 Apr 2011 07:19 |
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