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Influence of Texture and Anisotropy on Microstresses and Flow Behavior in a Duplex Stainless Steel During Loading
Linköping University, The Institute of Technology. Linköping University, Department of Mechanical Engineering, Engineering Materials.
Linköping University, The Institute of Technology. Linköping University, Department of Mechanical Engineering, Engineering Materials.ORCID iD: 0000-0002-2286-5588
2000 (English)In: Advances in X-ray Analysis, Vol. 44, 2000, 229-234 p.Conference paper, Published paper (Other academic)
Abstract [en]

The load partitioning between the two phases in a cold rolled duplex stainless steel sheet have been experimentally studied in situ during loading, via X-ray diffraction, for different loading directions. The microstresses in the two phases were found to decrease when loading in the transverse direction, while they increase during loading in the rolling and 45°-direction. Due to strong crystallographic texture in the ferritic phase the material is anisotropic with a higher stiffness and yield strength in the transverse direction compared to the rolling direction. The texture have been measured and used as input to theoretical predictions of both elastic and plastic anisotropy. The predicted anisotropic material properties have then been used in finite element simulations to study the flow behaviour of the material in different directions. The predicted flow behaviour was found to be in good agreement with the experimentally observed load partitioning between the phases for loading in the rolling and transverse direction. However, the yield strength of the ferritic phase during loading in the 45°-direction was found to be lower than what can be predicted by the crystallographic texture.

Place, publisher, year, edition, pages
2000. 229-234 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-30158Local ID: 15644OAI: oai:DiVA.org:liu-30158DiVA: diva2:250979
Conference
49th Annual (2000) Denver X-ray Conference™ Denver Marriott Tech Center Hotel Denver, Colorado, U.S.A. July 31 - August 4
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2013-10-02

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Moverare, JohanOdén, Magnus

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