| 摘要 |
A work-strengthenable alloy which includes a gamma prime phase gamma prime particles comprising the following elements in percent by weight: -molybdenum 6-16 -chromium 13-25 -iron 0-23 -nickel 10-55 -carbon 0-0.05 -boron 0-0.05 -cobalt balance, at least 20, - said alloy also containing one or more elements which form gamma prime phase with nickel, the electron vacancy number, Nv, of the alloy being defined by Nv=0.61 Ni+1.71 Co+2.66 Fe+4.66 Cr+566 Mo wherein the respective chemical symbols represent the effective atomic fractions of the respective elements present in the alloy, said value not exceeding the value Nv=2.82-0.017 WFe, where WFe is the percent by weight of iron in the alloy for those alloys containing no iron or less than 13 percent by weight iron and WFe is 13 for the alloys containing from 13-23 percent by weight iron. The alloys are formed by a melt; and heating the alloy at a temperature of from 600 DEG -900 DEG C. for a time sufficient to form said gamma prime phase prior to strengthening said alloy by working it to achieve a reduction in cross-section of at least 5 percent. The gamma prime particles gave a cross-sectional size of at least 10 nanometers.
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