... Phase equilibria in the three-component system nickel–chromium–tantalum at 1375 K . Abstract The isothermic section of the phase equilibria diagram of the Ni–Cr–Ta system has been constructed at 1375 K by means of the methods of equilibrium alloys and existence of six three-phase equilibria g-Ni+b-Cr+a-Ni 3 Ta; b-Cr+a-Ni 3 Ta+l; a-Ni 3 Ta+l+Ni 2 Ta; l+Ni 2 Ta+m; m+l+NiTa 2 Х l+NiTa 2 +b-Ta has been established. ... Moscow University Chemistry Bulletin . 2013, Vol. ...