Journal ArticleDOI
The solidification sequence in an 18-8 stainless steel, investigated by directional solidification
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In this paper, the authors applied the directional solidification technique to investigate the complicated solidification sequence in a commercial austenitic stainless steel which was known to yield a primary precipitation of § ferrite when cast into a 5 tons ingot.Abstract:
The directional solidification technique was applied in order to investigate the complicated solidification sequence in a commercial austenitic stainless steel which was known to yield a primary precipitation of § ferrite when cast into a 5 tons ingot. Three stages of solidification were found. The first precipitation of § ferrite was interrupted by precipitation of austenite and at the end of the solidification there was a transition back to precipitation of § ferrite. The competition between the first two stages is affected by the cooling rate and the nitrogen content. The precipitation of austenite from the melt results in the usual coring whereas o ferrite forms with a very homogeneous composition, presumably due to rapid diffusion in this phase. On cooling austenite forms from the § ferrite and this reaction also results in coring, presumably due to rapid diffusion in § ferrite.read more
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The structure of splat-cooled Fe-20% Cr-25% Ni austenitic steel
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Journal ArticleDOI
Origin of the lathy ferrite in AISI 304 stainless steel during directional solidification
TL;DR: In this paper, the authors have revealed the solidification path of 18-8 austenitic stainless steel using directional solidification and liquid quenching, and confirmed that austenite is formed through peritectic transformation rather than eutectic reaction.
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Comparative study: Mechanical and metallurgical aspects of tailored welded blanks (TWBs)
TL;DR: Bayraktar et al. as discussed by the authors made a comparative study for microstructural and mechanical-toughness characterisation of the steel assemblies, base metal or welded by LASER.
Journal ArticleDOI
Formation of a two-phase microstructure in Fe-Cr-Ni alloy during directional solidification
TL;DR: In this article, the formation and evolution of a two-phase coupled growth microstructure in AISI 304 stainless steel are investigated using a quenching method during directional solidification.
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