Two strain-hardening mechanisms in nanocrystalline austenitic steel: an in situ synchrotron X-ray diffraction study

Schloth, P.; Weisser, M.A.; Van Swygenhoven, H.; Van Petegem, S.; Susila, P.; Subramanya Sarma, V.; Murty, B.S.; Lauterbach, S.; Heilmaier, M.

doi:10.1016/j.scriptamat.2012.01.021

Two strain-hardening mechanisms in nanocrystalline austenitic steel: an in situ synchrotron X-ray diffraction study

Schloth P, Weisser MA, Van Swygenhoven H, Van Petegem S, Susila P, Subramanya Sarma V, Murty BS, Lauterbach S & Heilmaier M

Citation

Schloth, P., Weisser, M. A., Van Swygenhoven, H., Van Petegem, S., Susila, P., Subramanya Sarma, V., … Heilmaier, M. (2012). Two strain-hardening mechanisms in nanocrystalline austenitic steel: an in situ synchrotron X-ray diffraction study. Scripta Materialia, 66(9), 690-693. https://doi.org/10.1016/j.scriptamat.2012.01.021

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:12501

The mechanical behaviour of nanocrystalline austenitic steels with and without yttria particles was investigated using in situ synchrotron diffraction during tensile deformation. Two different strain-hardening regimes were found. The first regime can be assigned predominantly to a martensitic phase transformation, the second to deformation twinning in the fragmented retained austenite. The kinetics of martensitic phase transformation is remarkably enhanced in the nanocrystalline structure.

Details

Publication Type

Journal Article

Title

Two strain-hardening mechanisms in nanocrystalline austenitic steel: an in situ synchrotron X-ray diffraction study

Author(s)

Schloth, P. (0000 PSI)

Weisser, M.A. (3402 Materialforschung und Simulation)

Van Swygenhoven, H. (3402 Materialforschung und Simulation)

Van Petegem, S. (3402 Materialforschung und Simulation)

Susila, P.

Subramanya Sarma, V.