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Solubility of nitrogen in liquid Fe-Cr-Ni alloys containing manganese and molybdenum

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Abstract

The nitrogen solubility in liquid Fe-Cr-Ni alloys containing Mo or Mn was determined by the Sieverts’ method. The first and second order mutual interactions among nitrogen, chromium, nickel, molybdenum, and manganese in iron were determined as a function of temperature. The heat and entropy of solution in these alloys were correlated as functions of the logarithm of the activity coefficient of nitrogen at 1873 K independent of the composition of the alloys. An equation was derived to predict the nitrogen solubility in liquid multicomponent iron alloys for the range from logJn, 1873K = 0 to −1.4 as, log(wt pct N)T = (-247/T-1.22)-(4780/T-1.51) (logf N, 1873K)- (1760/T-0.91) (logfN,1873K)2.

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Authors and Affiliations

  1. Department of Materials and Metallurgical Engineering, University of Michigan, 48109, Ann Arbor, MI

    Harue Wada (Research Associate) & Robert D. Pehlke (Professor and Chairman)

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  1. Harue Wada
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  2. Robert D. Pehlke
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Wada, H., Pehlke, R.D. Solubility of nitrogen in liquid Fe-Cr-Ni alloys containing manganese and molybdenum. Metall Trans B 8, 675–682 (1977). https://doi.org/10.1007/BF02669347

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  • DOI: https://doi.org/10.1007/BF02669347

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