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Synchrotron X-Ray Diffraction Study of Texture Evolution in 904L Stainless Steel under Dynamic Shock Compression
Beijing Institute Technology.
Beijing Institute Technology.
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, The Institute of Technology.
Pacific NW Natl Lab.
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2011 (English)In: METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, ISSN 1073-5623, Vol. 42A, no 1, 81-88 p.Article in journal (Refereed) Published
Abstract [en]

The influence of strain rate on development of deformation texture under a dynamic shock compression of a 904L stainless steel was quantitatively investigated using synchrotron X-ray diffraction and crystallographic orientation distribution function (ODF) analysis. The Split-Hopkinson Pressure Bar (SHPB) technique was used to generate a high strain rate of andgt; 10(3) s(-1) for preparing the deformed samples. Starting with an almost random texture in a solution treatment condition, the deformed material developed several typical texture components, such as Goss texture and Brass texture. Compared to the texture components displayed in the state of quasi-static compression deformation, it was found that the high-speed deformation generated much weaker texture components. In combination with the change in microstructures observed by electron backscattering diffraction (EBSD) and the transmission electron microscopy (TEM) technique, the high-energy X-ray diffraction provides a powerful tool for characterizing the strain-rate dependence of grain rotation at each stage of deformation. The deformation heterogeneity evident in our experiment can be explained by a transition of deformation mechanism from the dislocation/twin-dominated mode to a shear-band-dominated one with increasing strain rate.

Place, publisher, year, edition, pages
Springer Science Business Media , 2011. Vol. 42A, no 1, 81-88 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-66284DOI: 10.1007/s11661-010-0368-2ISI: 000286840300013OAI: diva2:403176
Available from: 2011-03-11 Created: 2011-03-11 Last updated: 2011-03-11

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Peng, Ru
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