mõningate metallisulamite kalduvus hapralt puruneda piki terapiire, kui pingestada või deformeerida sulamistemperatuuridele lähedastel temperatuuridel (vrd külmahaprus)
Hea teada
Nimetus "punahaprus" tuleneb temperatuuridel 850-1050 oC terastele omasest punasest värvusest. On seotud terapiiridel sageli minimaalses koguses moodustuva vedelfaasiga.
a tendency for some alloys to separate along grain boundaries when stressed or deformed at temperatures near the melting point (compare: cold shortness)
Hea teada
Hot shortness is caused by a low-melting constituent, often present only in minute amounts, that is segregated at grain boundaries.
