Cast Duplex Stainless
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Corrosion Resistance of Cu-Alloyed Precipitation Hardenable Duplex Stainless Steel ASTM A890 Grade 1B
Duplex stainless steels (DSS) are corrosion resistant alloys largely used in chemical and petrochemical industries. Some commercial DSS contain 0.5-1.0% copper addition to improve the corrosion resistance by reducing the corrosion rate in non-oxidizing environments. Higher copper addition (≥ 2%) can also hard by precipitation, especially when fine copper p
Mat. Res.. Publicado em: 07/11/2019
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2. Embrittlement and Corrosion Decay of a Cast Duplex Stainless Steel
Duplex stainless steels (DSS) are Fe-Cr-Ni-Mo alloys, with low carbon content, which have a favorable combination of mechanical properties and corrosion resistance. These characteristics are mainly attributed to a dual phase and refined microstructure, typical of these alloys, consisting of similar amounts of ferrite and austenite. For this reason, DSS are w
Mat. Res.. Publicado em: 20/07/2017
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3. Effect of Cooling Rate on the Corrosion Behavior of As-Cast SAF 2205 Duplex Stainless Steel After Solution Annealing Treatment
The formation of intermetallic phases alters the properties of duplex stainless steel and is therefore a crucial factor in its performance. For example, the formation of sigma phase in duplex steel increases its brittleness and decreases its corrosion resistance because this phase consumes chromium and molybdenum in solid solution, thus leading to the deplet
Mat. Res.. Publicado em: 23/10/2015
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4. Efeito da adição de nitrogênio e da temperatura de solubilização nas propriedades mecânicas de aços inoxidáveis duplex fundidos / Effect of the nitrogen addition and solubilization temperature in the mechanical properties of duplex stainless steels cast
Os aços inoxidáveis duplex são assim designados por apresentarem duas fases em sua microestrutura; a ferrita e a austenita. Para estudo foram selecionados dois aços inoxidáveis fundidos de acordo com as normas ASTM A890/A890M Gr. 1A (CD4MCu) e ASTM A890/890M Gr. 1B (CD4MCuN). O que difere estes dois aços inoxidáveis duplex é a presença do nitrogêni
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/06/2010
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5. Obtaining by laser treatment and characterization of superface composite on cast duplex stainless steels / Obtenção por tratamento a laser e caracterização de composito superficial em aços inoxidaveis duplex fundidos
In this work was studied the orientation relations between austenite and ferrite in three cast duplex stainless steels, ASTM A890 1A, 3A, 6A on solution treatment. After that, simple laser surface remelting (LR) and laser melt injection (LMI) treatments were carried out on the alloys. The microstructural changes and the effects of laser treatments on hardnes
Publicado em: 2007
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6. Effect of niobium on the microstructure and mechanical properties of cast super duplex stainless steel SEW 410 W. Nr.1.4517 / Efeito do Nióbio na Microestrutura e nas Propriedades Mecânicas do Aço Inoxidável Superduplex Fundido SEW 410 W.Nr. 1.4517
To produce duplex stainless steel in an economic way it is necessary to use scrap and process returns containing high Cr, Ni and Mo contents. This procedure can result in an unexpected alloy chemical composition with some elements not included in the material standard. This work studied the Nb influence on the microstructure and mechanical properties of cast
Publicado em: 2000