Deformation kinetics of a TRIP steel determined by in situ high-energy synchrotron X-ray diffraction
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hdl:2117/358669
Document typeArticle
Defense date2021-12-09
Rights accessRestricted access - publisher's policy
(embargoed until 2023-12-09)
Abstract
The microstructure design and the development of predictive approaches exploiting the transformation-induced plasticity (TRIP) effect require a keen understanding of the kinetics governing the strain-induced martensitic transformation. In this work, in situ high-energy synchrotron X-ray diffraction is applied to track the deformation kinetics of a commercial AISI 301LN metastable austenitic stainless steel in real-time. The kinetics obtained, providing the behaviour of the bulk material during room temperature tension up to a true strain of 0.3, unambiguously reveals the transformation sequence of e and a' martensite which is discussed with respect to the evolution of texture and slip. These results are enhanced with microstructure analysis including electron backscattered diffraction and transmission Kikuchi diffraction. The insights provided shed light on the role of e during a' transformation in metastable austenitic stainless steels and show that the latter is triggered by the general activation of slip.
CitationBarriobero-Vila, P. [et al.]. Deformation kinetics of a TRIP steel determined by in situ high-energy synchrotron X-ray diffraction. "Materialia", 9 Desembre 2021, vol. 20, p. 101251:1-101251:10.
ISSN2589-1529
Collections
- Departament d'Enginyeria mecànica - Articles de revista [473]
- Departament de Ciència i Enginyeria de Materials - Articles de revista [318]
- PROCOMAME - Processos de Conformació de Materials Metàl·lics - Articles de revista [243]
- TECNOFAB - Grup de Recerca en Tecnologies de Fabricació - Articles de revista [165]
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version publicada.pdf![]() | 4,383Mb | Restricted access |
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version publicada.pdf![]() | 4,383Mb | Restricted access |
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