liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
A micromechanical model of the martensitic transformation
ICSI, 15, Rue Jean Starcky, BP 2478, 68057 Mulhouse Cedex, France.
Linköping University, Department of Management and Engineering, Solid Mechanics. Linköping University, Faculty of Science & Engineering.
1998 (English)In: Mechanics of Materials, ISSN 0167-6636, Vol. 27, no 3, 125-144 p.Article in journal (Refereed) Published
Abstract [en]

A micromechanical model of the martensitic transformation at the grain scale has been established, considering the more specific case of ferrous alloys. The transformation proceeds through the formation of successive variants of the product phase within a unit cell representative of a grain; interactions between neighbouring grains are simulated by the choice of periodic boundary conditions. From a thermodynamical analysis, a selection rule for the order and orientation of the forming martensitic variants has been established, based on internal stresses anisotropy. These concepts have been implemented into a two-dimensional finite element simulation of the transformation, considering an elastoplastic behaviour of both parent and product phases. Morphological and crystallographical features of the transformation are considered: one variant consists of a thin layer of elements within the mesh that can form with four possible discrete orientations. Simulation results show the development of the plate pattern as a combination of the influence of both external load and internal stresses built during the progress of the transformation. These are related to global evolutions of transformation plasticity vs. transformation progress. Comparison with experiments show a similar form of the evolutions of the total strain; however, the model overestimates the strain levels. The possible reasons for this discrepancy are discussed.

Place, publisher, year, edition, pages
1998. Vol. 27, no 3, 125-144 p.
Keyword [en]
Martensitic transformation;Transformation plasticity;Elastoplasticity;Finite elements;Thermodynamics;Orientation effects
National Category
Applied Mechanics
URN: urn:nbn:se:liu:diva-125410DOI: 10.1016/S0167-6636(97)00044-6OAI: diva2:905504
Available from: 2016-02-22 Created: 2016-02-22 Last updated: 2016-03-02

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Simonsson, Kjell
By organisation
Solid MechanicsFaculty of Science & Engineering
Applied Mechanics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 988 hits
ReferencesLink to record
Permanent link

Direct link