Effects of TIG Reheating on Duplex Stainless Steel Weld Microstructure

A tétel rövid nézete
dc.contributor.authorVarbai, Balázs
dc.contributor.authorTolnai, Ferenc
dc.contributor.authorMájlinger, Kornél
dc.date.issued2019-03-03
dc.description.abstractDuplex stainless steels (DSS) gaining their excellent mechanical properties and corrosion resistance due to their austenitic-ferritic microstructure, ideally in the same amount. However, to keep this ideal phase ratio during arc welding is very difficult. Generally, the arc welding processes will result in more ferritic microstructure in the weld metal and in the heat affected zone, due to the rapid cooling. The ferritic microstructure can cause chromiumnitride precipitation, because the nitrogen solubility in ferrite phase is very low below 700 °C. These chromiumnitride precipitations can cause loss of corrosion resistance and mechanical properties. However, during subsequent reheating, the chromium-nitrides can dissolve and act as a secondary austenite nucleation site in the ferritic microstructure. In our research we welded DSS specimen autogenously, with tungsten inert gas welding using pure argon and 94 % argon + 6 % nitrogen as shielding gasses. In the first case the sub-sequent solid-state reheating caused 20 % increase in the austenite fraction of the weld metal but with the use of mixed shielding gas only 5 % increase.en
dc.formatapplication/pdf
dc.identifier.citationInternational Journal of Engineering and Management Sciences, Vol. 4 No. 1 (2019) , 295-302
dc.identifier.doihttps://doi.org/10.21791/IJEMS.2019.1.37.
dc.identifier.eissn2498-700X
dc.identifier.issue1
dc.identifier.jtitleInternational Journal of Engineering and Management Sciences
dc.identifier.urihttps://hdl.handle.net/2437/295277en
dc.identifier.volume4
dc.languageen
dc.relationhttps://ojs.lib.unideb.hu/IJEMS/article/view/5237
dc.rights.accessOpen Access
dc.rights.ownerby the authors
dc.titleEffects of TIG Reheating on Duplex Stainless Steel Weld Microstructureen
dc.typefolyóiratcikkhu
dc.typearticleen
dc.type.detailedidegen nyelvű folyóiratközlemény hazai lapbanhu
Fájlok
Eredeti köteg (ORIGINAL bundle)
Megjelenítve 1 - 1 (Összesen 1)
Nincs kép
Név:
pdf
Méret:
935.61 KB
Formátum:
Adobe Portable Document Format
Letöltés
Gyűjtemények
International Journal of Engineering and Management Sciences (DE-journals)