We have discovered that the hot-short problem can be overcome through a combination of alloying and thermomechanical processing steps.
Hot-short compositions are weak at elevated temperatures.
Thus, the higher silicon alloys normally are used for more complex castings and for permanent mold and die casting processes, which cannot tolerate hot-short alloys.
Origin
Late 18th century: from hot + short suggested by the earlier red-short, from Swedish rōdskōr (from rōd 'red' + skōr 'brittle').