Schloth, P. ; Weisser, M. A. ; Van Swygenhoven, H. ; Van Petegem, S. ; Susila, P. ; Subramanya Sarma, V. ; Murty, B. S. ; Lauterbach, S. ; Heilmaier, M. (2012) Two strain-hardening mechanisms in nanocrystalline austenitic steel: an in situ synchrotron X-ray diffraction study Scripta Materialia, 66 (9). pp. 690-693. 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.2012.01.021
Abstract
The mechanical behaviour of nanocrystalline austenitic steels with and without yttria particles was investigated using in situ synchrotron diffraction during tensile deformation. Two different strain-hardening regimes were found. The first regime can be assigned predominantly to a martensitic phase transformation, the second to deformation twinning in the fragmented retained austenite. The kinetics of martensitic phase transformation is remarkably enhanced in the nanocrystalline structure.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Synchrotron X-ray Diffraction; Nanocrystalline Materials; Martensitic Phase Transformation; Twinning |
| ID Code: | 110883 |
| Deposited On: | 06 Dec 2017 11:01 |
| Last Modified: | 06 Dec 2017 11:01 |
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