Browsing Engenharia de Materiais - EMa by CNPq Subject "ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::METALURGIA FISICA"
Now showing items 1-20 of 29
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Influência dos parâmetros na microestrutura e propriedades mecânicas de fios produzidos pelo processo de Extrusão por Fricção (FE)
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 22/03/2023)Friction Extrusion (FE) is a solid-state process that produces wires, tubes and other parts. Due to the combination of severe plastic deformation (SPD) and moderate temperatures, dynamic recrystallization (DRX) is promoted, ... -
Estudo da presença de ferrita delta com a variação de níquel e tratamento térmico em um aço AISI 304L com ênfase nas propriedades mecânicas
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 15/03/2023)The properties of austenitic stainless steels can be degraded in service when containing delta ferrite in the microstructure. In small quantities, delta ferrite reduces susceptibility to solidification cracks and increases ... -
Classificação preditiva de fases para ligas multicomponentes CrCoFeMnNi utilizando machine learning
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 16/02/2023)When we refer to multicomponent alloys, or high entropy alloys as they are commonly called, it is inevitable to discuss the challenge of exploring new compositions that may be of scientific interest. This difficulty is ... -
Integração de cálculo CALPHAD com Python para seleção de ligas multielemento para armazenagem de hidrogênio
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 17/03/2023)O desenvolvimento de ligas multielemento voltadas para o armazenamento de hidrogênio no estado sólido, por meio de hidretos metálicos, é crucial para utilizar o hidrogênio como vetor energético. Essas ligas devem apresentar ... -
Cálculo da energia de falha de empilhamento através da teoria do funcional da densidade
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 24/03/2023)Due to the large number of possible compositions, multicomponent alloys present a wide spectrum of properties, especially mechanical, when compared to traditional ones. In this context, the use of methods that allow knowing ... -
Estudo de ligas especiais para resistência à corrosão em ambientes agressivos
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 17/03/2023)The phenomenon of corrosion deteriorates metallic materials, the corrosive attack is electrochemical and starts on the metallic surface. The relationship between corrosion and metals involves high costs of the order of 5% ... -
Structural characterization and mechanical properties of friction consolidated Al6CuXLi (X = 2, 4, and 6) alloys
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 21/03/2023)Friction Extrusion and Friction Consolidation are two similar solid-state processes, which can produce extrudes as wires, tubes, or in the case of consolidation, fully consolidated discs. The friction resulted from the ... -
Avaliação da resistência à corrosão intergranular do aço inoxidável austenítico ASTM F138
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 23/03/2023)ASTM F138 austenitic stainless steel is used in the form of plates and screws as permanent surgical implants. Due to its critical application, when compared to AISI 316, this steel contains a processing route with Electro ... -
Caracterização de fios supercondutores comerciais de NbTi
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 25/08/2023)Since the discovery of superconductivity in 1911, various efforts have been employed in the development of superconducting materials. NbTi alloys play an important role in the production of superconducting wires, crucial ... -
Análise comparativa do desempenho mecânico de ligas β-Ti em implantes ortopédicos como alternativas aos biomateriais metálicos comerciais
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 30/08/2022)According to the World Health Organization, the life expectancy of the population is increasing, in this context, the number of interventions for the implementation of orthopedic implants in the human body also grows over ... -
Avaliação dos efeitos da microadição de NbB na solidificação da liga de alumínio 2017
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 22/04/2022)The 2017 alloy, based on the Al-Cu system, is widely applied in the manufacture of structural parts in the aeronautical and automobile industries. In this work, the modification of this alloy through the addition of Nb and ... -
Modelagem do tamanho de grão resultante da recristalização dinâmica durante laminação a quente de um aço inoxidável 316L
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 25/08/2023)Austenitic stainless steels are known for having a wide service temperature range, formability, ductility, weldability, and good corrosion resistance. In particular, the AISI 316L stainless steel (austenitic) has molybdenum ... -
Design of a solid-state hydrogen storage tank for application in the European Spallation Source (ESS)
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 16/11/2021)The European Spallation Source, located in Lund, Sweden, is one of the largest scientific and technological infrastructures currently under construction and will be the world’s most powerful neutron source. Its operation ... -
Estado da arte em ligas multicomponente biocompatíveis contendo Ti, Nb e Zr
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 19/11/2021)The present work aims to study biomaterials that are used in implants, aiming to understand the potential of titanium alloys containing stabilizing elements such as niobium and zirconium, these elements improve mechanical ... -
Estudo da formação de fase vítrea no sistema Fe-Mo-P-C-B utilizando cálculos termodinâmicos e critério de amorfização
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 15/09/2022)Glasses with high atomic concentration of iron have been studied due to its magnetic properties, high mechanical and corrosion resistance, and low cost of the raw material. However, these materials present low glass-forming ... -
Estudo de correlações tipo taxa de resfriamento x microestrutura x dureza da liga resistente ao calor 28Cr48Ni5W3Co
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 12/09/2022)The 28Cr48Ni5W3Co alloy is widely used in furnace systems and various petrochemical plant equipment. In this work, the directional solidification of this alloy in a transient heat extraction regime was carried out, ... -
Avaliação estrutural da liga AlSi7MgMn fundida utilizando cavacos de usinagem briquetados como matéria-prima
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 16/09/2022)This course completion work (TCC) aims to evaluate the microstructure of an ingot of AlSi7MgMn (or A356) alloy by casting in permanent mold and graphite mold from compacted and centrifuged chip briquettes of this alloy. ... -
Análise da energia envolvida na conformação mecânica por forjamento a quente de um aço médio carbono
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 16/09/2022)This work was conceived with the aim of carrying out a practical activity that could be adapted to the Mechanical Conformation discipline to be taught in the coming semesters by the Department of Materials Engineering at ... -
Produção e caracterização de liga multicomponente duplex do sistema CrCoNi com composição Cr51,5Ni33,5Co15
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 06/12/2022)Multicomponent and/or high entropy alloys (HEAs) are a new class of materials that do not have a main element and are instead composed of concentrated solid solutions. Several compositions with interesting mechanical and ... -
Avaliação de aços ao manganês para a indústria automobilística
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 22/04/2022)Oil is a source of fuel that has enabled one of the greatest cultural and economic transformations since the period of the first industrial revolution. However, it is also one of the biggest environmental problems, in ...