Article ID Journal Published Year Pages File Type
1503164 Scripta Materialia 2007 4 Pages PDF
Abstract

Extensive creep cavitation precluded the beneficial effect of Cu addition on long-term creep rupture strength of 18Cr–12Ni–Nb (type 347) austenitic stainless steel. Microalloying with B and Ce suppressed creep cavitation to increase its creep rupture strength and ductility. Boron segregation on nucleated cavity surface instead of S retarded its growth. Cerium acted as a getter for soluble S to prevent its segregation on cavity surface.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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