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Abrasion Resistance Of Nickel Aluminide Coatings Deposited By Hvof And Pta Processes
By Marjorie Benegra
This study aims to compare the wear resistance assessed in rubber wheel abrasion test of nickel aluminide coatings deposited by for Plasma Transferred Arc (PTA) and High Velocity Oxigen Fuel (HVOF) ma
Jul 31, 2018
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Tecnologia de refratários alumina-magnésia para panela de aço parte ii, propriedades de concreto em aquecimento sob restrição
By Kazuya Nakabo
In this article, influences of restraint and MgO content on densification of alumina-magnesia castable during heating were experimentally studied. High thermal expansion-alumina-magnesia castable spec
Oct 30, 2017
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Grain Size Prediction By Using A Meshless Rolling Simulation System*
By Božidar Šarler, Umut Hanoglu
A rolling simulation system has been developed to calculate the macroscopic rate of deformation, stress, strain, and temperature fields by using a novel meshless method. The model is based on two-dime
Oct 1, 2019
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Development Of New Steel Grades At Arcelormittal Tubarão: An Operational Perspective*
By José Fagundes Jr., Juliano Braz Possatti, Bruno Câmara Vieira, Gabriel Godinho Alves, Bruno Bastos da Silva Murad, Cristina Maria de Oliveira Roque
Driven by market trends, increasing environmental accountability, government regulations and fostered by the Company’s strategic plan, ArcelorMittal Tubarão has developed new steel products to deliver
Oct 1, 2019
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Population Balance Model Approach To Ball Mill Optimization In Iron Ore Grinding
By Patrícia Mundim Campos Faria
The process of particle size reduction by grinding is inherently inefficient and involves high capital and operating costs. In particular, ball milling is one of the important unit operations in the i
Aug 1, 2018
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Tensile Strength Of Polyester Composites Reinforced With Palf
By Giulio Rodrigues Altoé
The environmental concern is creating pressure for the substitution of high energy consumption materials for natural and sustainable ones. Compared to synthetic fibers, natural fibers have shown advan
Aug 16, 2017
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Inclusion Removal By Cao-sio2-al2o3-mgo Slags In Experimental Conditions
By Pedro Cunha Alves, Wagner Viana Bielefeldt, Vinicius Cardoso da Rocha, Augusto Lachini Pereira, Julio Aníbal Morales Pereira
The capacity of steelmaking slags (CaO-SiO2-Al2O3-MgO) on inclusion removal from liquid steel was investigated through experimental conditions. Laboratory experiments with slag and steel samples (with
Oct 1, 2019
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CREEP BEHAVIOR OF 1Cr0.5Mo STEEL . PART 1 – CHARACTERIZATION AND DATA PARAMETERIZATION IN THE VIRGIN CONDITION
By Levi de Oliveira Bueno
Constant stress testing was used for characterization of creep behavior of a 1Cr0.5Mo steel plate in the virgin condition. The tests were performed on creep machines equipped with Andrade-Chalmers typ
Aug 16, 2017
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Installation And Operational Result Of Lindarctm Real Time Laser Off-gas Analysis System At Acciaierie Bertoli Safau - Abs (Italy) Electric Arc Furnace
By Daniele Tolazzi
In today’s highly competitive market situation, it is of outmost importance for EAF steel makers to optimise their processes in order to reduce operating costs and to improve safety and reliability of
Aug 16, 2017
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The Effect Of Reheating Temperature On The Dissolution Of Precipitates And Mechanical Properties Of Microalloyed Steel Heavy Plates*
By Fábio Dian Murari, Antônio Adel dos Santos
The effect of reheating temperature of slabs on the precipitates dissolution and mechanical properties of Ti-Nb microalloyed steel was investigated in pilot scale. It was verified, by means of transmi
Oct 1, 2019
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Comportamento Mecânico De Estruturas Compósitas De Epoxi Com Nanofibras Eletrofiadas De Nylon 6
By João Paulo Ferreira Santos
Neste trabalho, foram obtidas estruturas compósitas constituídas por camadas alternadas de epóxi com mantas de nanofibras de nylon 6. As nanofibras foram produzidas pela técnica de eletrofiação. O com
Aug 8, 2018
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Avaliação Da Superelasticidade Em Ligas De Niti Ricas Em Ni Com Pré-ciclagem Térmica Via Análises De Ultramicrodureza Instrumentada
By Rodolfo da Silva Teixeira
As ligas de NiTi ricas em Ni tendem a exibir o efeito superelástico a temperatura ambiente. As amostras em estudo foram submetidas a tratamento térmico e mecânico a fim de avaliar o comportamento supe
Oct 30, 2017
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First Operating Experiences with Post-Combustion Lances at BOF Shop LD3
By Joachiim Lehner
The application of post-combustion (secondary oxygen) to avoid skull formation on BOF lances was tested in industrial trials. The main findings are that no negative impact on the metallurgical targets
Oct 30, 2017
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Início De Operação E Estabilização Da Sinterização Da Csp
By Luiz Fernando Pimentel Simões
Neste trabalho são apresentados o planejamento e preparação para o início da operação, o período de “ramp up” e estabilização da produção da sinterização da Companhia Siderúrgica do Pecém. Incluindo a
Oct 30, 2017
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Produção De Pelotas Auto-redutoras A Partir De Lixo Orgânico Doméstico
By Alberto Eloy Anduze Nogueira
O lixo orgânico doméstico gera um problema de eliminação crescente, exigindo sistemas de processamento dispendiosos. É necessário encontrar novas aplicações para estes resíduos; uma poderia ser como m
Aug 16, 2017
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Adequação Do Sistema De Geração De Vapor Na Cte-1
By Gustavo Menezes Nevesr
Este trabalho tem como objetivo apresentar os resultados do procedimento de adequação do sistema de geração de vapor na CTE-1, visando à redução de custo no grupo CSN. O estudo foi efetuado através da
Sep 25, 2017
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Modern Mini And Compact Blast Furnaces: Operations–based Design Considerations
By Edo Engel
Whereas only a handful of decades ago, typical blast furnace working volumes were below 1000 m³, such furnaces are currently designated compact or even mini blast furnaces. For certain business cases,
Aug 16, 2017
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Fundamentals Of Developing Fine Grained Structures In “as Rolled” Long Products
By Douglas Glenn Stalheim
The demands for improved mechanical properties in hot rolled long products are increasing as the expectations of global Standards and construction designer’s increase. Cost constraints limit the exces
Jul 30, 2018
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EFFECT OF COOLING CONDITIONS AFTER HOT ROLLING ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A DUAL PHASE STEEL OF 800 MPa STRENGTH
By Dagoberto Brandão Santos, Kairo de Barros Guimarães, Túlio Magno Füzessy de Melo
The effect of the cooling conditions on the microstructure and hardness of a Dual Phase hot-rolled steel 800 MPa strength was investigated. Simulations of the cooling conditions using a dilatometer we
Oct 1, 2019
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Corrosão Do Aço Superduplex Uns S32750 Para Uso Em Permutadores De Calor
By Lucas Coelho da Silva
Este trabalho tem a pretensão de problematizar a influência da corrosão, sobretudo nos trocadores de calor, e trazer a importância de um estudo prévio detalhado, ressaltando como o desempenho deste eq
Aug 16, 2017