| 摘要 |
A high strength, low alloy, low to medium carbon wrought or cast steel is provided of the Fe/Cr/C type, said steel characterized by the presence of a small but effective amount of each of Cu and Ni sufficient to enhance the mechanical stability of retained austenite formed following quenching of said steel from its austenitizing temperature. Preferably the steel also includes small but effective amounts of Al, Ti and Nb sufficient to provide a fine grained microstructure.
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