“…This difference is related to the austenitic steel 316L (SS particles 6, 10 and 16 μ m) and the ferritic steel 410L (SS particle 45μ m). Nitrogen is known to cause nitridation in austenitic stainless steels [34], thus forming chrome nitrides at high temperatures [35]. As the pyrolysis used nitrogen as the inert gas, these results suggest that the increase in mass at ~700 °C and peaking at ~900 °C may be associated with the reaction of nitrogen with the 316L SS particles.…”