Thermodynamic analysis and experiments showed the deoxidation ability of aluminum in iron-nickel melts to be lower than that pure iron nickel. With an increase nickel content, decreases about 50% Ni then it rises. In nickel, is almost equal iron. On one hand, this can explained by bond strength with melt when content rises (γ°Al(Fe)=0.049, γ°Al(Ni)=0.00022) and, on other a decrease oxygen (γ°O(Fe)=0.0105, γ°O(Ni)=0.357). Curves solubility pass through minimum whose location independent melt....

Thermodynamic analysis of oxygen solutions in the Fe–Ni melts with vanadium has been carried out. The deoxidizing ability decreases slightly nickel content up to 20% but it considerably rises a further increase its concentration. solubility curves pass through minimum, which shifts lower concentrations rise content, i.e., from 2.32% for pure iron 0.77% nickel. addition causers an concentration melt. For or alloys higher than 60%, is comparison that manganese and close chromium. This can be...

Thermodynamic analysis of oxygen solutions in iron-nickel melts with chromium has been carried out. Since the bond strength such a melt becomes weaker an increase nickel concentration (γ°O(Fe)=0.0105; γ°O(Ni)=0.357), deoxidation power liquid is higher than that iron melt.The remains almost constant when increases to 20% but it rises sharply further its content. Oxygen solubility curves pass through minimum, which shifts lower contents range from -7% Cr (pure iron) -1.7% nickel) rises....

The oxygen solutions in the titanium-containing Fe–Ni melts have been thermodynamically analyzed. When nickel content rises to 40%, deoxidation ability of titanium decreases but then it sharply with increasing concentration melt. This can be explained by fact that although bond strength is considerably stronger comparison iron (γ°Ti(s)(Fe)=0.0083; γ°Ti(s)(Ni)=0.00019), appreciably weaker (γ°O(Fe)=0.0105; γ°O(Ni)=0.357). solubility curves pass through a minimum whose position shifts higher...

The mineral resources base of manganese ores is sufficiently large in Russia. However, their mining capacity almost absent. This due to the low quality domestic and high content phosphorus. To date, Russia has been obliged import commercial ore, manganese-containing ferroalloys, metallic manganese, dioxide. produce high-carbon ferromanganese composition charge was developed. optimum variant that where 10–15% raw materials were changed for waste slag. In this case, phosphorus lower by...

Abstract Effect of Si, Ti, and Al on the oxygen solubility in Fe-Co-Cr melts at 1873 K was thermodynamically analyzed. At low contents, concentration increases very slightly. higher their when mechanism interaction Ti with is changed, just these elements determine melt decreases significantly.

Abstract The oxygen solutions in the Ni-Co melts containing silicon have been thermodynamically analyzed. activity coefficients at infinite dilution and interaction parameters alloys 1873 K are calculated. solubility depending on content studied obtained. Silicon is characterized by high affinity to these alloys. deoxidation ability of decreases slightly with an increase cobalt melt. In more than 20% cobalt, a concentration less 0.5%, virtually unchangeable.

Thermodynamic analysis of oxygen solutions in zirconium-containing Ni-Co melts has been carried out. The equilibrium constants interaction zirconium and oxygen, the activity coefficients at infinite dilution, parameters for different composition 1873 K were determined. dependences solubility on contents cobalt studied calculated. Zirconium minimum points curves corresponding concentrations