A macroscopic model to simulate the mechanically induced martensitic transformation in metastable austenitic stainless steels

Share/Save/Bookmark

Perdahcioglu, E.S. and Geijselaers, H.J.M. (2012) A macroscopic model to simulate the mechanically induced martensitic transformation in metastable austenitic stainless steels. Acta materialia, 60 (11). 4409 - 4419. ISSN 1359-6454

[img]PDF
Restricted to UT campus only
: Request a copy
686Kb
Abstract:Mechanically induced martensitic transformation and the associated transformation plasticity phenomena in austenitic stainless steels are studied. The mechanisms responsible for the transformation are investigated and put into perspective based on experimental evidence. The stress and strain partitioning into the austenite and martensite phases are formulated using a mean-field homogenization approach. At this intermediate length-scale the average stress in the austenite phase is computed and utilized to compute the mechanical driving force resolved in the material. The amount of transformation and the transformation plasticity is derived as a function of the driving force. The mechanical response of the material is obtained by combining the homogenization and the transformation models. The model is verified by mechanical tests under biaxial loading conditions during which different transformation rates are observed. As a final verification of the model, a bending test is used which manifests the stress-state dependency of the transformation.
Item Type:Article
Copyright:© 2012 Elsevier
Faculty:
Engineering Technology (CTW)
Research Chair:
Research Group:
Link to this item:http://purl.utwente.nl/publications/80527
Official URL:http://dx.doi.org/10.1016/j.actamat.2012.04.042
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 285991