A high-Mn austenitic steel was deformed in cold rolling to study the martensitic transformation and microstructure using X-ray diffraction and electron backscatter diffraction. Despite heavy deformation of 70 pct reduction (1.2 true strain), α′-martensite could not be induced in this alloy, but about 90 pct of the austenite transformed to ε-martensite. However, a small fraction (~4 pct) of α′-martensite could be observed when the same alloy was subjected to low strain compression tests in a Gleeble simulator. The stability of ε-martensite was attributed to the increase in stacking fault energy of the steel, expected to be more than 20 mJ/m 2 because of the increase in temperature during the cold rolling deformation. © 2011 The Minerals, Metals & Materials Society and ASM International.
CITATION STYLE
Sahu, P., Hamada, A. S., Sahu, T., Puustinen, J., Oittinen, T., & Karjalainen, L. P. (2012). Martensitic transformation during cold rolling deformation of an austenitic Fe-26Mn-0.14C alloy. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 43(1), 47–55. https://doi.org/10.1007/s11661-011-0818-5
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