Patent ID: 8097095

Claim:
An Fe-based alloy hardfacing material having a composition selected from the group consisting of (Fe 0.8 Cr 0.2 ) 79 B 17 W 2 C 2 , (Fe 0.8 Cr 0.2 ) 73 Mo 2 W 2 B 16 C 4 Si 1 Mn 2 , (Fe 0.8 Cr 0.2 ) 75 Mo 2 B 17 C 5 Si 1 , Fe 63 Cr 8 Mo 2 B 17 C 5 Si 1 Al 4 , (Fe 0.8 Cr 0.2 ) 75 W 2 B 17 C 5 Si 1 , (Fe 0.8 Cr 0.2 ) 73 Mo 2 W 2 B 17 C 5 Si 1 , (Fe 0.8 Cr 0.2 ) 72 Mo 2 W 7 B 17 C 5 Si 1 Gd 1 , (Fe 0.8 Cr 0.2 ) 71 Mo 2 W 2 B 17 C 5 Si 1 Gd 2 , and (Fe 0.8 Cr 0.2 ) 74 Mo 2 W 2 B 17 C 4 Si 1 , the Fe-based alloy hardfacing material having a microstructure comprising devitrified nanocrystalline Fe-based alloy grains having a grain size in the range of from about 75 nanometers to about 125 nanometers, the microstructure further comprising second phase precipitates, the Fe-based alloy hardfacing material having a hardness of at least about 9.2 GPa and a tensile elongation of from about 5% to about 180%.