380.     BRÜCHANOV, A.  [Effect of Compressive Stress on Disintegration of Cementite.]  Ztschr. anorg. Chem., vol. 218, 1934, pp. 146-150; Metallurgia, vol. 9, No. 5, 1934, pp. 37-40; Chem. Abs., vol. 28, 1934, p. 5792.

      Experiments with cast bars consisting of pearlite and cementite showed that cementite was stable up to temperatures of about 500°, but under pressure it begins to disintegrate at that temperature and disintegrates more with higher pressures.  As the stability of cementite decreases with increasing temperature, the effect of pressure becomes less appreciable at higher temperatures and cannot be observed above 750°.