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Mostrando ítems 31-40 de 40
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Relación entre propiedades térmicas y mecánicas con la viscosidad de escorias usadas en el colado de aceros
(Universidad de la República Uruguay, 2023-04-21)En el presente trabajo se determina la fluidez de diversas escorias de molde, con y sin flúor, a la temperatura de 1300ºC, por medio del método del plano inclinado. Las capas sólidas obtenidas tras el enfriamiento rápido ... -
Replacement of fluorine in mould powders: influence on the crystallization kinetics
(Springer, 2019-06-01)In the present work mould powders were prepared using different raw materials. One powder was fluorine-containing and the others were free-F. The total fluorine content (approx. 10 wt%) was replaced by different percentages ... -
Salt spray test on AISI 316L stainless steel
(2020-01-10)Damage produced by rigorous working conditions can affect materials, especially when they are exposed to high temperatures, corrosive atmospheres and mechanical stresses. Austenitic stainless steels have variable chromium ... -
Sensitización microestructural en acero inoxidable austenítico AISI 316L
(2022-11-08)A pesar de los numerosos intentos por desarrollar aceros inoxidables austeníticos con adiciones intencionales de elementos de aleación para mitigar las reacciones corrosivas que pueden originarse durante el servicio en ... -
Structural evolution of a Al2O3-MgOxAl2O3 castable in the range 1000-1600ºC
(The American Ceramic Society, 2022-07-28)Thermal and structural characteristics of an alumina-spinel castable (containing 2.5 wt.% CaO) was studied. The specimens were cast (8.0 wt.% water), cured in air at ambient temperature (48 h), then dried at 100°C (24 h) ... -
Structural evolution of an Al2O3-MgO•Al2O3 castable in the range 1000-1600°C
(Mind Authors Inc., 2020-11-10)Thermal and structural characteristics of an alumina-spinel castable (containing 2.5 wt.% CaO) was studied. The specimens were cast (8.0 wt.% water), cured in air at ambient temperature (48 h), then dried at 100°C (24 h) ... -
Structure-viscosity relationship in mold fluxes using spectroscopy techniques
In this work, glassy layers of three commercial mold fluxes were obtained by quenching from 1300°C. These layers were characterized by XRD, Raman and XPS spectroscopy. The viscosity of these materials, measured between ... -
Thermal analysis techniques applied to study wear mechanisms of black refractories used in the steel continuous casting process
(Springer, 2019-06-01)In this paper, the results are correlated with information obtained through conventional techniques such as optical microscopy (OM) and scanning electron microscopy (SEM) including EDS analysis and EBSD, that are used to ... -
Tratamientos térmicos y corrosión en niebla salina en acero inoxidable AISI 316L
(Universidad Tecnológica Nacional, 2020-10-06)En este trabajo se evalúa el comportamiento microestructural de un acero inoxidable AISI 316L, tratado térmicamente y sometido a ensayos de corrosión acelerada, durante 96 horas, en cámara de niebla salina según normas ... -
Viscosidad de polvos coladores: comparación entre valores experimentales y modelos teóricos
(Universidad Nacional de Rosario, 2019-10-01)En este trabajo se presenta el desarrollo, montaje y puesta en servicio de un equipo para realizar mediciones de viscosidad a altas temperaturas. En particular, se mide la viscosidad de tres polvos coladores comerciales ...