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Zeitschriftenartikel:

V. G. Praig, A. Schintlmeister, M. Auinger, H. Danninger, M. Stöger-Pollach:
"High-resolution topochemical analysis and thermochemical simulations of oxides and nitrides at grain boundaries and within the grains of a low alloy Mn-Cr hot-rolled steel sheet";
Journal of Alloys and Compounds, 876 (2021), 160069; S. 1 - 9.



Kurzfassung englisch:
The se­lec­tive ox­i­da­tion un­der­neath the scale layer of an in­dus­tri­ally hot rolled Fe-1.8Mn-0.8Cr steel at tem­per­a­tures be­tween 600 and 700 ∘C has been in­ves­ti­gated. The spa­tial dis­tri­b­u­tion and com­po­si­tion of formed pre­cip­i­tates has been stud­ied by high-res­o­lu­tion topochem­i­cal analy­sis via TEM-EELS and NanoSIMS and re­vealed het­ero­geneities in chem­i­cal com­po­si­tion, es­pe­cially along grain bound­aries. It could be shown that grain bound­ary ox­ides are pre­dom­i­nantly com­posed of alu­minium, chromium or sil­i­con ox­ides/​ni­trides, sur­rounded by man­ganese-rich ox­ides. Ex­per­i­men­tal re­sults of phase sta­bil­ity have been com­pared to nu­mer­i­cal sim­u­la­tions, con­sid­er­ing the dis­tri­b­u­tion of more than 40 po­ten­tially sta­ble ox­ide-, ni­tride- and car­bide phases, and dif­fer­ences are crit­i­cally dis­cussed.

Schlagworte:
metals and alloys, grain boundaries, oxidation, NanoSIMS, thermodynamic modelling


"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1016/j.jallcom.2021.160069

Elektronische Version der Publikation:
https://publik.tuwien.ac.at/files/publik_295880.pdf


Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.