Abstract
Austenitic high-manganese steels containing from 16 to 36 weight percent manganese and from 0.01 to 0.75 weight percent carbon were investigated by Mössbauer spectroscopy in both hot-rolled and cold-rolled conditions. Spectra were obtained over the temperature ränge 10 to 295K in the transmission mode and at room temperature in the X-ray re-emission mode. In the hot-rolled condition, the steels were primarily antiferromagnetic y-phase austenite, and exhibited Neel temperatures ranging from 234 to 460K. After cold reduction, varying degrees of transformation to the nonmagnetic hcp e-phase were observed, the resistance of the austenite to mechanically induced transformation increased with increasing manganese and carbon content. Steels that exhibited relatively small amounts of the e-phase after cold reduction showed continuous work hardening with increasing cold reduction. Steels that exhibited large amounts of e-phase formation during cold reduction exhibited rapid work hardening followed by Saturation. No magnetic a-phase material was observed by Mössbauer spectroscopy, in agreement with the very small changes observed in magnetic susceptibility.
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© 1986 Plenum Press, New York
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Huffman, G.P., Ouchi, C. (1986). Mössbauer Investigation of High-Manganese Steels. In: Long, G.J., Stevens, J.G. (eds) Industrial Applications of the Mössbauer Effect. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1827-9_9
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DOI: https://doi.org/10.1007/978-1-4613-1827-9_9
Publisher Name: Springer, Boston, MA
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