4 documents found, page 1 of 1
Simulação termodinâmica computacional de liga modelo de aço super ferrítico con...
Santos,Julianne Ribeiro dos; Silva,Marcelo José Gomes da; Abreu,Hamilton Ferreira Gomes deRESUMO Aços inoxidáveis super ferríticos são utilizados em equipamentos como trocadores de calor e torres de destilação que operam em condições extremas de temperatura, pressão e em ambientes contendo altas concentrações de cloretos, H2S e CO2, encontradas nas novas áreas de exploração de petróleo e gás na costa brasileira. Uma liga super ferrítica com composição baseada em aços comerciais foi desenvolvida para...
Corrosion Behavior of Austenitic Stainless Steels in CO2-Saturated Synthetic Oi...
Cardoso,Jorge Luiz; Mandel,Marcel; Krüger,Lutz; Herculano,Luís Flávio Gaspar; Lima Neto,Pedro de; Silva,Marcelo José Gomes daThe corrosion behavior of austenitic and superaustenitic stainless steels was investigated in carbon dioxide-saturated synthetic oil field formation water using cyclic polarization tests. In order to measure the effect of carbon dioxide pressure, the samples were also exposed in a pressurized medium containing carbon dioxide and synthetic air. For this purpose, tests were performed for long exposure time at 80 ...
Characterization and Comparative Analysis of Corrosion Resistance of 4 High Man...
Florez,Mauro Andres Cerra; Lima,Marcos Natan da Silva; Araújo,Walney Silva; Silva,Marcelo José Gomes daThe liquefied natural gas volumes that currently need to be stored and/or transported require engineering to consistently develop materials that combine high mechanical strength and low manufacturing costs. The present work brings the study of four models of high manganese steels (non-commercials), to demonstrate the feasibility of being used in the petrochemical industry. The tests contemplate the characteriza...
Texture analysis of deformation induced martensite in an AISI 301L stainless st...
Abreu,Hamilton Ferreira Gomes de; Silva,Marcelo José Gomes da; Herculano,Luís Flávio Gaspar; Bhadeshia,HarryExperiments have been conducted to study the strain induced transformation from austenite to martensite in a metastable AISI 301LN austenitic stainless steel, deformed by uniaxial tension applied along rolling direction. Samples deformed 10 and 20% have shown the presence of α´ martensite phase. Measured pole figures of martensite phase were compared to calculated ones, assuming no variant selection and selecti...