Matrix Steel Nbc
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Revestimentos de liga de nÃquel depositados pelo processo TIG com alimentaÃÃo de arame frio: aspectos operacionais e metalÃrgicos / Nickel based alloys weld overlay deposited by gtaw cold wire feed: operational and metallurgical aspects
The weld overlay with nickel-based alloys is an interesting alternative for the construction and repair of equipments for applications in severe corrosive medium, allowing reach the desirable characteristics (corrosion resistance) with a significant reduction of cost. In this context, the GTAW cold wire feed process can be a good option for overlay depositio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/04/2010
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2. Sinterização de aço inoxidável reforçado com partículas nanométricas dispersas de carbeto de nióbio - NbC
Metal powder sintering appears to be promising option to achieve new physical and mechanical properties combining raw material with new processing improvements. It interest over many years and continue to gain wide industrial application. Stainless steel is a widely accepted material because high corrosion resistance. However stainless steels have poor sinte
Publicado em: 2007
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3. Desgaste e fadiga térmica de ligas aço matriz + NbC. / Wear and thermal fatigue of matrix steel + NbCalloys.
The concept of ?matrix steel + NbC? was used to cast alloys with the M2 steel matrix (0,5%C ? 2%W ? 3%Mo ? 4,6%Cr ? 1%V) and different volume fractions of niobium carbides. Niobium (2,5 e 5%) and stoichiometric carbon were added to produce NbC carbides and titanium (0,1%) to modify de NbC carbides morphology. NbC presented three basic morphologies: Chinese s
Publicado em: 2006
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4. Caracterização microestrutural e mecânica de aços resisitentes ao fogo a base de MO-Si-P
Cracking problems during continuous casting of USI SAC structural steels produced by USIMINAS has led to development of a new steel design based on the substitution of Si and P for this former alloy base (Cr and Cu). The new design reduced significantly production costs associated with slab scarfing, without altering the original mechanical and physical char
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/09/2004