After tempering, with recovery of hardness, MANET steels present internal strains; these residual strains increase with quenching rate prior to tempering, and they remain after prolonged tempering times. On account of their persistence, after thermal treatments which lead to low dislocation and sub-boundary densities, the possibility has been considered that the high swelling resistance of MANET is connected with these centres of strain, probably connected with the formation, in ferrite, of Cr-enriched and contiguous Cr-depleted zones which may act as sinks for interstitials. Comparative observations on the internal strain behavior of cold worked 316L stainless steel appear consistent with this possibility.
Brunelli, L., Gondi, P., Montanari, R., Coppola, R. (1991). INTERNAL STRAINS AFTER RECOVERY OF HARDNESS IN TEMPERED MARTENSITIC STEELS FOR FUSION-REACTORS. In JOURNAL OF NUCLEAR MATERIALS (pp.675-678). AMSTERDAM : ELSEVIER SCIENCE BV.
INTERNAL STRAINS AFTER RECOVERY OF HARDNESS IN TEMPERED MARTENSITIC STEELS FOR FUSION-REACTORS
GONDI, PRIMO;MONTANARI, ROBERTO;
1991-01-01
Abstract
After tempering, with recovery of hardness, MANET steels present internal strains; these residual strains increase with quenching rate prior to tempering, and they remain after prolonged tempering times. On account of their persistence, after thermal treatments which lead to low dislocation and sub-boundary densities, the possibility has been considered that the high swelling resistance of MANET is connected with these centres of strain, probably connected with the formation, in ferrite, of Cr-enriched and contiguous Cr-depleted zones which may act as sinks for interstitials. Comparative observations on the internal strain behavior of cold worked 316L stainless steel appear consistent with this possibility.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
