Numerical and experimental investigations of the anisotropic transformation strains during martensitic transformation in a low alloy Cr-Mo steel 42CrMo4

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dc.identifier.uri http://dx.doi.org/10.15488/2613
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/2639
dc.contributor.author Behrens, Bernd-Arno
dc.contributor.author Bouguecha, Anas
dc.contributor.author Bonk, Christian
dc.contributor.author Chugreev, Alexander
dc.date.accessioned 2018-01-19T08:57:27Z
dc.date.available 2018-01-19T08:57:27Z
dc.date.issued 2017
dc.identifier.citation Behrens, B.-A.; Bouguecha, A.; Bonk, C.; Chugreev, A.: Numerical and experimental investigations of the anisotropic transformation strains during martensitic transformation in a low alloy Cr-Mo steel 42CrMo4. In: Procedia Engineering 207 (2017), S. 1815-1820. DOI: https://doi.org/10.1016/j.proeng.2017.10.944
dc.description.abstract Hot forming as a coupled thermo-mechanical process comprises of numerous material phenomena with a corresponding impact on the material behavior during and after the forming process. Within the subsequent heat treatment, possible rapid cooling of the hot formed parts leads to the diffusionless decomposition of austenite into martensite. In this context, in addition to the elastic, plastic and linear thermal strain components, complex isotropic as well as anisotropic transformation strains can occur. Irreversible anisotropic transformation strains account for the plastic deformation at the phase boundary between the emerging and the parent phase and are related to the transformation induced plasticity (TRIP or TP) phenomena. Moreover, TRIP strains can be reduced or amplified by varying the current stress state. These phenomena significantly contribute to the final residual stress state and may be responsible for the cost-intensive component defects arising due to thermal shrinkage. This study aims at developing an FE-based material model in order to describe and quantitatively visualize stress dependence of the transformation induced anisotropic strains for a typical forging steel 42CrMo4. The developed material model as well as the aspects of its implementation in a commercial FE-system (Simufact.forming) is presented. Consequently, the discussed material model is tested by comparison of experimental and numerical results with respect to resulting dilatation under various stress states. eng
dc.language.iso eng
dc.publisher Amsterdam : Elsevier
dc.relation.ispartofseries Procedia Engineering 207 (2017)
dc.rights CC BY-NC-ND 4.0
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject 42CrMo4 eng
dc.subject finite element analysis eng
dc.subject multiscale material modelling eng
dc.subject transformation induced plasticity eng
dc.subject Alloy steel eng
dc.subject Anisotropy eng
dc.subject Binary alloys eng
dc.subject Chromium alloys eng
dc.subject Finite element method eng
dc.subject Linear transformations eng
dc.subject Martensitic steel eng
dc.subject Mathematical transformations eng
dc.subject Molybdenum eng
dc.subject Molybdenum alloys eng
dc.subject Plasticity eng
dc.subject Strain eng
dc.subject 42CrMo4 eng
dc.subject Anisotropic transformation strains eng
dc.subject Coupled thermo-mechanical eng
dc.subject Experimental investigations eng
dc.subject Low alloy cr mo steels eng
dc.subject Material modelling eng
dc.subject Transformation induced plasticity eng
dc.subject Transformation-Induced eng
dc.subject Martensitic transformations eng
dc.subject.ddc 620 | Ingenieurwissenschaften und Maschinenbau ger
dc.title Numerical and experimental investigations of the anisotropic transformation strains during martensitic transformation in a low alloy Cr-Mo steel 42CrMo4
dc.type article
dc.type conferenceObject
dc.type Text
dc.relation.issn 18777058
dc.relation.doi https://doi.org/10.1016/j.proeng.2017.10.944
dc.bibliographicCitation.volume 207
dc.bibliographicCitation.firstPage 1815
dc.bibliographicCitation.lastPage 1820
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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