Dispersion-strengthened nickel-thoria alloys have been prepared by thermal decomposition of thorium nitrate on 2–5-μ nickel powder. The resultant alloys were evaluated in room-temperature tensile tests, in creep-rupture tests at 815, 982, and 1093°C, and, for thermal stability, by annealing tests (1 h) up to 1350°C. Relatively uniform structures were produced, which gave superior high-temperature properties and structural stability to at least 1350°C.
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References
1.
IrmannR., Aluminium, 1951, 27, 29.
2.
BonisL. J. and GrantN. J., Trans. Met. Soc. A.I.M.E., 1960, 218, 877.
3.
BonisL. J. and GrantN. J., ibid., 1962, 224, 308.
4.
WornD. K. and MartonS. F., “Powder Metallurgy”, p. 309. 1961: New York and London (Interscience Publishers).
