Eisen und Stickstoff

Thermodynamics of Nitrogen in Fe-Mn-Al-Si-C Alloy Melts

“…In particular, as Mn has much [33,[37][38][39][40][41][42][43][44][45][46] along with the present optimization result and previous modeling result. [32] higher vapor pressure than Fe, this should be taken into account in thermodynamic analysis.…”

“…The N solubility in liquid iron has been measured by the Sieverts' method, [33,37,38] the levitation melting technique, [39][40][41][42] and the sampling method. [43][44][45][46] The reported data of the N solubility are scattered significantly, and the temperature dependences of the data are different depending on the experimental studies.…”

Thermodynamics of Titanium, Nitrogen and TiN Formation in Liquid Iron

“…Using Wagner's relation, 6) the equilibrium constant K 1 can be rewritten as the following relation using the first where e N Ti and e N N are the first-order interaction parameters of titanium and nitrogen on nitrogen, respectively, and the value of e N N is known to be 0 in the temperature range of 1 873-1 973 K. 15) As mentioned earlier, silicon content in top parts of metal samples was very low, and aluminum and oxygen contents were lower than 20 and 30 mass ppm, respectively. Therefore, the effect of silicon, aluminum and oxygen on titanium and nitrogen was assumed to be negligible.…”

A theoretical formula for the solubility of hydrogen in palladium

“…Both the 80 and 0° C. isotherms show values of r greater than 0-59. Sieverts and Zapf (1935) have measured the solubility of hydrogen and deuterium in palladium between 300 and 1100° C. for pressures up to 1 atm. It is not without interest to calculate, according to equation (32), the solubility of hydrogen at these temperatures as this will give us additional information concerning v(T).…”