Inter-critical annealing of soft martensitic stainless steel leads to formation of fine-grained reverted austenite, which is stabilized by partitioning of Ni. Generally it is reported that reverted austenite is not affected by immersion in cryogenic liquids, such as boiling N2 and He. The present data show that reverted austenite that is apparently stable at boiling nitrogen temperature does transform isothermally to martensite during holding at 195 K. The results are explained in terms of thermally activated martensite formation.
Martensite Formation from Reverted Austenite at Sub-zero Celsius Temperature / Niessen, F.; Villa, M.; Somers, M. A. J.. - In: METALLURGICAL AND MATERIALS TRANSACTIONS. A, PHYSICAL METALLURGY AND MATERIALS SCIENCE. - ISSN 1073-5623. - 49:11(2018), pp. 5241-5245. [10.1007/s11661-018-4887-6]
Martensite Formation from Reverted Austenite at Sub-zero Celsius Temperature
Villa M.;
2018-01-01
Abstract
Inter-critical annealing of soft martensitic stainless steel leads to formation of fine-grained reverted austenite, which is stabilized by partitioning of Ni. Generally it is reported that reverted austenite is not affected by immersion in cryogenic liquids, such as boiling N2 and He. The present data show that reverted austenite that is apparently stable at boiling nitrogen temperature does transform isothermally to martensite during holding at 195 K. The results are explained in terms of thermally activated martensite formation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
