Electric Power Research Institute Incorporated

Amax Incorporated

Edward P Whelan

Tsuguyasu Wada

Howard Ocken

Evan K Ohriner

Eric Kalns

Novel wear-resistant, anti-galling, cobalt-free hardfacing iron based alloys are provided which are useful for construction of plant or manufacturing facility components exposed to aggressive environments. The alloys are particularly useful to construct components used in the cooling systems of nuclear power plants.

Cobalt-free, iron-base hardfacing alloys

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.

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Ann Arbor, MI, United States of America

Edward P Whelan