Precipitation Kinetics in a Nb-stabilized Ferritic Stainless Steel

Effect of cold rolling on phase separation in 2202 lean duplex stainless steel

“…The apparatus provides the TEP of the steel relative to that of pure iron. The principle of the technique is described in [28] . For each investigated temperature T , the TEP, denoted S , of a sample of dimensions 60 × 3 × 1 mm 3 was measured before any heat treatment ( S(T,t 0 )) and after different aging times t ( S(T,t)) .…”

“…However, a semi-quantitative approach based on the use of the natural abundance of the three Si isotopes leads to the conclusion that approximately 65% of the 14-Da peak in austenite can be attributed to N. In the rest of the paper, the contribution of the peaks at 14, 14.5, and 15 Da will be reported as 'Si + N'. For ferrite, because of the absence of N, this contribution is purely Si, whereas for austenite, knowing the natural abundance of 28 Si (92.22%), the respective contributions of Si and N are estimated to be approximately 40% and 60%, respectively. In aged martensite, Si and N were also shown to be present in the 14-Da peak in the same proportions as in austenite.…”