Isothermal and Cyclic Aging of 310S Austenitic Stainless Steel

Unusual damage and high creep strain rates have been observed on components made of 310S stainless steel subjected to thermal cycles between room temperature and 1143 K (870 °C). Microstructural characterization of such components after service evidenced high contents in sigma phase which formed first from δ-ferrite and then from γ-austenite. To get some insight into this microstructural evolution, isothermal and cyclic aging of 310S stainless steel has been studied experimentally and discussed on the basis of numerical simulations. The higher contents of sigma phase observed after cyclic agings than after isothermal treatments are clearly associated with nucleation triggered by thermal cycling

Welding of stainless-duplex steels Properties of welded joints

Translated from Polish (Biuletyn Instytutu Spawalnictwa 2001 45 (2) p. 25-33)Available from British Library Document Supply Centre-DSC:9023.190(10332)T / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo