Mo-Hf-C alloy composition

Details Mo-Hf-C alloy composition Mo-Hf-C alloy composition

1985-10-02

1987-04-14

Andrews, Melvyn J.

Alloys or metallic compositions

Molybdenum base

148407, 148423, C22C 2704

Patent

active

046577351

ABSTRACT:
A molybdenum-hafnium-carbon alloy is provided consisting essentially by weight of about 0.6% to about 1% Hf, about 0.045% to about 0.08% C, and the balance essentially molybdenum, the alloy being characterized such that during casting of an ingot and hot forging of a billet thereof, it has a substantially less tendency to crack compared to alloys containing Hf in excess of about 1% by weight and carbon in excess of 0.08% by weight, without substantial diminution in strength properties of said alloy at elevated temperatures.

REFERENCES:
patent: 3169860 (1965-02-01), Semchysheu
Metals Outlook, Materials Engineering, vol. 72, No. 1, Jul. 1970, p. 17.
W. D. Klopp et al., J. of Metals, Jun. 1971, pp. 27-38.
Walter R. Witzke, Metallurgical Trans. A. vol. 7A, Mar. 1976, pp. 443-451.

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