Effect of thermal aging on the Néel temperature of a Fe–Cr–Ni–Mo alloy


Numerous previous investigations on the magnetic properties of Fe–Cr–Ni or similar alloys show that the Néel temperature of this class of material is usually in the range 20–40 K and never exceeds 60 K. In this paper, we report on the discovery that the Ne’el temperature of a Fe–Cr–Ni–Mo alloy can be substantially increased to approximately 80–100 K by long-term thermal aging at 800 °C and above. This discovery has raised many questions on the detailed mechanism of magnetic transition on this class of material and is expected to open up a new line of investigation for researchers in this field.

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Correspondence to C. H. Shek.

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Shek, C.H., Lai, M.W. & Lai, J.K.L. Effect of thermal aging on the Néel temperature of a Fe–Cr–Ni–Mo alloy. Journal of Materials Research 17, 879–883 (2002). https://doi.org/10.1557/JMR.2002.0127

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