Download e-book for kindle: Alloying Liquid Metal with Nitrogen from Electric ARC Plasma by V I Lakomskii

By V I Lakomskii

Within the monograph, the writer summarises the implications got in learn and investigations of the gas-liquid steel procedure at temperatures standard of electrical arc welding and electrometallurgy techniques. specified cognizance is given to the issues of sorption of diatomic homonuclear gases, particularly nitrogen from electrical arc plasma, through steel melts. it's proven that after the steel absorbs the fuel from plasma the method doesn't achieve the thermodynamic equilibrium country. Investigations have been conducted into strategies occurring within the gas-plasma layer bordering with the steel. those methods ensure the gasoline content material of liquid metal.

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E. the intersection of the curves and mg, will correspond to the equilibrium state. When in-creasing the temperature from T1 to T2 and the gas pressure being unchanged, the inequality appears and the gas begins to evolute out of solution. It will continue until the system comes to the equilibrium under the new conditions (point b) where . Therewith, it goes without saying that the gas concentration in the solution will decrease. In this case, the temperature dependence is presented by the dotted curve since the chemical potential value of a gas in a solution depends on its concentration.

E. the intersection of the curves and mg, will correspond to the equilibrium state. When in-creasing the temperature from T1 to T2 and the gas pressure being unchanged, the inequality appears and the gas begins to evolute out of solution. It will continue until the system comes to the equilibrium under the new conditions (point b) where . Therewith, it goes without saying that the gas concentration in the solution will decrease. In this case, the temperature dependence is presented by the dotted curve since the chemical potential value of a gas in a solution depends on its concentration.

Lange 115 have proposed a formula to calculate the entropy values of hydrogen dissolved in liquid metals Page 22 where is the inertia moment of a hydrogen molecule; is the oscillatory constant of a hydrogen molecule. 89 J/(g·atom·K). Now, let us see the extent to which the experimental values of , defined in studies of the hydrogen solubility in metals of groups I-VIII of the Periodic system of elements respond the theoretical values of standard partial entropy found. Let us calculate from equation (34).

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