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Your search keyword '"Valiev, R.Z."' showing total 13 results
Start Over Author "Valiev, R.Z." Journal materials letters
13 results on '"Valiev, R.Z."'

13. The effect of tungsten on microstructure and mechanical performance of an ultrafine Fe-Cr steel.

Author

Ivanisenko, Yu., Mazilkin, A., Kübel, C., Abramova, M.M., Valiev, R.Z., Enikeev, N.A., Lomakin, I.V., Etienne, A., Sauvage, X., and Radiguet, B.

Subjects
*MATERIAL plasticity, *TORSION, *FERRITIC steel, *AUSTENITIC stainless steel, *MICROSTRUCTURE
Abstract

Model Fe-Cr alloys with and without W were nanostructured by severe plastic deformation at 350˚C. Transmission electron microscopy observations of the microstructure indicate that the addition of 1 wt% of W led to a reduction of the mean grain size from 129 to 110 nm. Atom probe analyses show that only Cr and Si segregate at grain boundaries during deformation while W remains homogeneously distributed. This solid solution leads to higher mechanical strength and plasticity as compared to Fe-Cr. The origin of the beneficial effect of W on the mechanical performance is discussed. [ABSTRACT FROM AUTHOR]

Published
2018
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