1497. HOSELITZ, K. Iron-Nickel Phase Diagram by Magnetic Analysis and the Effects of Cold Work. Jour. Iron Steel Inst. (London), vol. 149, I, 1944, pp. 193P-211P; Chem. Abs., vol. 38, 1944, p. 1198.

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Literature Abstracts

Small prismatic samples of Fe-Ni alloys in the range 3-50 at % Ni were heated to 1,000° for 4 hr., quenched in cold water, and cooled to –180° for 48 hr. to insure a single-phase state. The magnetic saturation intensities were determined over a wide range of temperatures. It was found that annealing of cold-worked alloys gave inconclusive results. Cold work on quenched alloys produced definite changes in the alloys, notably in the range 29-35% Ni; this indicates a distinct separation into 2 phases. In alloys with less Ni the changes are small, since these samples are not far from their equilibrium state. The boundaries of the heterogeneous (a+γ) region extended from 5% Ni to 34% Ni at 365°. Below this temperature the rates at which equilibria states are approached become extremely slow. It was estimated that the time for complete change is about 10 yr. at 325° and of the order of 40 yr. at 300°.

HOSELITZ, K., AND SUCKSMITH, W. Magnetic Study of the 2-Phase Iron-Nickel Alloy. II. See abs. 2695.

HOSHINO, S. See abs. 1906a.

HOT, M. See abs. 248, 249.