| 摘要 |
Nickel base superalloys in which critical amounts of boron are employed to enhance creep-rupture strength and ductility in the 1,300 DEG F-1,800 DEG F. temperature range. Creep-rupture strength and ductility at temperatures around 1,800 DEG F. also is enhanced by employing amounts of carbon below a critical upper limit. These alloys are particularly useful in the form of castings as gas turbine engine components. |
