Mining, ore preparation and ferro-niobium production at Mineração Catalão
International Symposium Niobium'81
Guimarães, Helvécio N
This paper briefly explains the different operating steps involving mining, ore preparation and standard ferroniobium production at Mineração Catalão de Goiás. (AU)
Technical Paper (PDF 226.77 KB)
Direct observation of niobium segregation to dislocations in steel
The Charles Hatchett Award is important to identify new applications and markets for Niobium. Introduced over 40 years ago, the Charles Hatchett Award is sponsored by CBMM Niobium and recognizes the best published research on the science and technology of Niobium. The annual award brings together technical experts from around the world and the winning paper is selected by a panel of international experts. The 2017 Charles Hatchett Award winners video presentation shows the acknowledgment of the various questions and uncertainties regarding the alloying elements during the direct observation of Niobium segregation to dislocations in steel. This paper aims to clarify these issues using atomic scale characterization and niobium as the alloying element in steel for grain refinement through the retardation of recrystallization in the hot rolling process and the cold rolling annealing process of the steel materials.
Development of High Chromium Ferritic Steels Strengthened by Intermetallic Phases
How much niobium can I use?
The amount of Niobium we can practically use during the hot rolling of steel products is mainly dependent on the carbon and nitrogen contents of the steel and the furnace reheating and drop-out temperature of the cast product prior to rolling.
The Role of Niobium in Advanced Ferritic Stainless Steels –Building a Sustainable Future
The Charles Hatchett Award is important to identify new applications and markets for Niobium. Introduced over 40 years ago, The Charles Hatchett Award is a prestigious recognition that aims to identify new applications and markets for Niobium. The award is sponsored by CBMM | Niobium and recognizes the best published research on the science and technology of Niobium. The annual award brings together technical experts worldwide, and a panel of international experts selects the winning paper. This video highlights the role of Niobium in advanced ferritic stainless steels and their importance for building a sustainable future, along with the presentation of the 2015 Charles Hatchett Award winning paper
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