naa a22 4500 510770991 CHVBK 20180411083213.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11837-012-0549-0 doi (NATIONALLICENCE)springer-10.1007/s11837-012-0549-0 Constitutive Model for the Time-Dependent Mechanical Behavior of 430 Stainless Steel and FeCrAlY Foams in Sulfur-Bearing Environments [Elektronische Daten] [James Hemrick, Edgar Lara-Curzio] The mechanical behavior of 430 stainless steel and pre-oxidized FeCrAlY open-cell foam materials of various densities was evaluated in compression at temperatures between 450°C and 600°C in an environment containing hydrogen sulfide and water vapor. Both materials showed negligible corrosion due to the gaseous atmosphere for up to 168h. The monotonic stress-strain response of these materials was found to be dependent on both the strain rate and their density, and the 430 stainless steel foam materials exhibited less stress relaxation than the FeCrAlY for similar experimental conditions. Using the results from multiple hardening-relaxation and monotonic tests, an empirical constitutive equation was derived to predict the stress-strain behavior of FeCrAlY foams as a function of temperature, and strain rate. These results are discussed in the context of using these materials in a black liquor gasifier to accommodate the chemical expansion of the refractory liner resulting from its reaction with the soda in the black liquor. TMS (outside the USA), 2013 Hemrick James Materials Science & Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, 37831, Oak Ridge, TN, USA aut Lara-Curzio Edgar Materials Science & Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, 37831, Oak Ridge, TN, USA aut JOM Springer US; http://www.springer-ny.com 65/3(2013-03-01), 450-458 1047-4838 65:3<450 2013 65 11837 https://doi.org/10.1007/s11837-012-0549-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-012-0549-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hemrick James Materials Science & Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, 37831, Oak Ridge, TN, USA aut NATIONALLICENCE 700 1- Lara-Curzio Edgar Materials Science & Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, 37831, Oak Ridge, TN, USA aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/3(2013-03-01), 450-458 1047-4838 65:3<450 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer