3318.     TAKAHASHI, G.  Equilibrium Between Austenite and the Carbon Oxides.  Sci. Repts. Tôhoku Imp. Univ., vol. 15, 1926, pp. 157-175; Chem. Abs., vol. 20, 1926, p. 2810.

        As the temperature rises, the C content of the austenite in equilibrium with a given mixture of CO and CO₂ decreases, and the CO concentration in the gas in equilibrium with austenite of constant C content, or with austenite and cementite, increases.  As the CO concentration of the gas increases at constant temperature, the C content of austenite in equilibrium with it increases until free cementite appears.  As the temperature rises, the C content of austenite in equilibrium with FeO decreases; and the CO concentration in the gas in equilibrium with austenite and a Fe decreases, while that in equilibrium with austenite and FeO increases.  Cementation does not occur when the CO concentration in the gas is less than that with which austenite and a Fe are in equilibrium.  By means of cementation in CO, the temperature of the A₁ point was determined to be 726°.

        TAKAZAWA, T.  See abs. 1918, 1919, 1920, 1921, 1922, 1923, 1924, 1925, 1926.

        TAKEGAMI, Y.  See abs. 1904.