Unveiling interactions of non-metallic inclusions within advanced ultra-high-strength steel: A spectro-microscopic determination and first-principles elucidation

Discerning phase-matrices for individual nitride inclusions within ultra-high-strength steel: experiment driven DFT investigation

“…According to HE-SXRD data (Fig. 2e) ferrite is the major phases in the studied sample, a small amount of retained austenite and cementite phases can also be in place [8]. It is known that…”

“…6a) and N K-edge (Fig. 6b) of the BN inclusion in the Our recent spectro-microscopic investigations demonstrated the formation of BN and TiN inclusion stabilized with Ca-based inclusion [8]. However, BN and TiN inclusions do not co-exist within the same inclusion.…”

“…energy was scanned at a 0.2 eV step for B K-edge and N K-edge and a step of 0.1 eV was set for L 2,3-edge. More details of the experimental setup are presented in our previous report [8].…”

“…Spectro-microscopy studies on NMIs embedded in steel [8] indicated that additional B atoms results in h-BN along with strong interaction with a Ca-based inclusion. These Ca-based inclusions also stabilize with TiN.…”

“…EDS mapping analysis only provides the elemental information. However, based on SEM-EDS mapping analysis we were capable to find that the selected inclusions in the steel sample are nitrides with mostly Ti and B compounds and possible presence of Al-based compounds [8]. elucidate the similarities and origins of nitride inclusions in common steel matrices based on spectroscopic features.…”