Néel Temperature of High Mn Austenitic Steels

다국어 초록 (Multilingual Abstract)

The predictive equations for the Néel temperature (TN) of high Mn austenitic steels were reviewed and re-evaluated using 116 different measured TN values. The previous equations gave good predictions for TN values of high Mn-low C austenitic steels, but not for those of medium and low Mn-high C austenitic steels, including TWIP steels with less than 20 at.% Mn. Therefore, an improved TN equation for medium and low Mn-high C as well as high Mn-low C was newly suggested. To improve the accuracy of the new equation, especially for high C TWIP steels, the TN values of three different high C TWIP steels were experimentally measured using a superconducting quantum interference device (SQUID) because there are few measured TN values of high C TWIP steels in the literature.

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