Abstract
AbstractThe addition of 6% molybdenum to austenitic stainless steel, although very beneficial to localized corrosion resistance, leads to hot workability difficulties. Hot short cracking at the interdendritic boundaries during initial breakdown of the cast ingot has been observed to be the principal failure mode. A hot working schedule has been developed which takes advantage of a peak in the ductility curve of this alloy at 1850°F (1010°C). An initial moderate reduction can be accomplished at this temperature without cracking which promotes a complete recry-stallization of the ingot during subsequent heating to rolling temperatures. The resultant fine-grained structure can be further processed to sheet without hot short cracking. Resume L'addition de 6% de molybdene a l'acier inoxydable austenitique augmente grandement sa resistance ala corrosion localisee mais engendre des problemes au cours du corroyage. On a observe que le principal mode de rupture, lors des premieres passes du degrossissage des lingo...
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