Spectacular displacements due to bainite

4,520 views · Published 11 March 2013 · 2:22 · Indexed 23 October 2026

Channel: bhadeshia123 · 2013 · Education

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Fe-7Ni-0.5Mn-0.03C wt% observed using confocal laser microscopy as it cools from 1300 C. At around 540 C, there is a beautiful transformation observed. Clear evidence, if more is needed, for a displacive mechanism of transformation! Work by Dr Jun Hak Pak.
http://www.msm.cam.ac.uk/phase-trans/bainite.html

Note: the temperatures indicates are not exact, subject to calibration. Notice the thermal grooves before transformation, which define the austenite grains.

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