Effects of Nitride-Oxide Particles on Solidified Structure inFe-20mass%Cr Alloy Deoxidised with Ti/M (M = Zr or Ce)
2010 (English)Report (Other academic)
The ratio of equiaxed grains on a cross section and average grain sizein Fe-20mass% Cr alloy deoxidised with Ti/M (M = Zr or Ce) were studiedas function of nitrogen content and particle characteristics such as sizedistribution, morphology and composition. Fe-20mass%Cr alloys weremelted at 1600ºC, deoxidised, cooled to 1400ºC followed by waterquenching. The particles were investigated on a surface of film filter afterelectrolytic extraction of metal samples with 10%AA electrolyte. It wasfound that the number of particles increases with increasing the N content.The as-cast solidification structure and grain size were clearly affected bythe number of oxide and oxide-nitride particles in Ti/Zr experiments. Theeffect in the Ti-Ce case was almost undetectable.
Place, publisher, year, edition, pages
Stockholm: KTH , 2010. , 40 p.
, KTH/MSE, 10:13
Fe-Cr alloy; Ti, Zr and Ce deoxidation, grain size distribution
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-13327OAI: oai:DiVA.org:kth-13327DiVA: diva2:323684