JOM

, Volume 8, Issue 10, pp 1285–1289 | Cite as

Study of Ferrous Ternary Diagrams in Relation to Magnetic Interactions: Fe-Ni-AI System

  • Ulrich H. Roesler
Article

Abstract

A thermodynamic analysis of the y loop in iron alloys recently published by Zener1 was applied to the ternary phase diagram Fe-Ni-AI. From this analysis two separate parameters, ΔTmartensite and ΔTmartensite were obtained, which describe the influence of the alloying elements upon the magnetic transformation range and a hypothetical martensite temperature, respectively. Extrapolation of the resulting values, plotted against the atomic fraction Ni/(Ni+AI), indicates an anomalous effect of aluminum on the ferromagnetic characteristics of iron. An interpretation of the anomaly is advanced in terms of short range magnetic order above the Curie point.

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Copyright information

© The Minerals, Metals & Materials Society 1956

Authors and Affiliations

  • Ulrich H. Roesler
    • 1
  1. 1.Siemens-SchuckertwerkeErlangenGermany

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