304l Austenitic Stainless Steel
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Mechanically Induced Martensitic Transformation of Hot Rolled and Annealed 304L Austenitic Stainless Steel at Room and Cryogenic Temperatures
The 304L austenitic stainless steel is susceptible to mechanically induced martensitic transformation from slightly above room temperature down to cryogenic temperatures. In this work, austenitic 304L steel produced by two different thermomechanical processes, hot rolling (HR) and cold rolling and annealing (CR/A), were subjected to martensitic transformatio
Mat. Res.. Publicado em: 30/09/2019
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2. Determination of phases and residual stresses after martensitic transformation induced by rolling in 304L stainless steel
RESUMO O aço inoxidável austenítico 304L é suscetível à transformação martensítica induzida por deformação. Esta transformação de fases depende da temperatura, assim como do modo, taxa e nível de deformação. Neste trabalho as fases e tensões residuais de um aço TRIP 304L, em que a transformação martensítica foi induzida por laminação a
Matéria (Rio J.). Publicado em: 16/09/2019
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3. Effect of sulfate on the pitting potential of austenitic stainless steels 18Cr8Ni and 17Cr6Mn5Ni in chloride media
Abstract Pitting corrosion resistance of two austenitic stainless steels, 18Cr8Ni (Type 304L or UNS S30403 stainless steel) and 17Cr6Mn5Ni, was evaluated in three electrolytic solutions containing a fixed concentration of 0.6M sodium chloride and different additions of sodium sulfate, 0.06M, 0.15M or 0.6M. Cyclic potentiodynamic polarization tests were perfo
REM, Int. Eng. J.. Publicado em: 2019-03
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4. Effects of Aging at 450°C on the Pitting Corrosion Resistance and Toughness of AISI 317L Steel Welded by GTAW and FSW
Austenitic stainless steels are high corrosion resistant alloys widely used in many industrial fields. Among this family of steels, AISI 317L stands out due to its higher localized corrosion resistance when compared to the traditional grades AISI 304L and AISI 316L. In some applications in oil refineries, the AISI 317L is being specified for services at mode
Mat. Res.. Publicado em: 17/11/2017
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5. Use of Electrochemical Tests for Assessment of the Effect of Erosive Particle Size on the Erosion-Corrosion Behaviour of AISI 304L Austenitic Stainless Steel
The degradation of AISI 304L stainless steel under static corrosion, liquid impingement and corrosion-erosion was studied using polarization curves. Static corrosion and liquid impingement tests were performed in 3.5% NaCl solution. Corrosion-erosion tests were performed in the same solution, containing 10 wt-% of three different SiO2 particle sizes. Synergi
Mat. Res.. Publicado em: 04/03/2016
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6. The Influence of Sample Preparation on the Quantitative Analysis of the Volume Fraction of Martensite Formed in a 304l Trip Steel
The metastable 304L austenitic stainless steels are susceptible to phase transformation induced by plastic deformation. The traditional metallographic preparation, via mechanical methods, introduces superficial plastic deformation from grinding and polishing. It is important to evaluate this effect on the results of quantitative analysis of martensite formed
Mat. Res.. Publicado em: 23/10/2015
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7. Effect of Continuous and Pulsed Current on the Metallurgical and Mechanical Properties of Gas Tungsten Arc Welded AISI 4340 Aeronautical and AISI 304 L Austenitic Stainless Steel Dissimilar Joints
In this research work, the weldability of low alloyed AISI 4340 aeronautical steel and AISI 304L austenitic stainless steel joined by continuous current (CC) and pulsed current (PC) gas tungsten arc welding (GTAW) techniques, using ER309L and ERNiCr-3 filler metals was investigated. The main focus of the study involves the investigation on the effect of cont
Mat. Res.. Publicado em: 2015-02
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8. Designing of CK45 carbon steel and AISI 304 stainless steel dissimilar welds
Gas tungsten arc welding of CK45 and AISI304 stainless steel was performed through preparation of different types of samples using ER308L and ERNi-1 wires. Welded samples were studied by different techniques including optical metallography, scanning electron microscopy equipped with energy dispersive X-ray spectroscopy (SEM-EDS), X-ray diffraction, hardness
Mat. Res.. Publicado em: 11/10/2013
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9. Effects of the rolling temperature on the formation and on the reversion of strain induced martensite in a AISI 304L stainless steel. / Efeitos da temperatura de laminação na formação e na reversão de martensita induzida por deformação no aço inoxidável austenítico AISI 304L.
Objetivo principal desta dissertação foi verificar os efeitos da temperatura de laminação na formação de martensita induzida por deformação e na sua posterior reversão da martensita para austenita no aço inoxidável austenítico AISI 304L. O estudo foi predominantemente microestrutural e para análise e caracterização foram utilizadas as técnica
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/02/2012
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10. AvaliaÃÃo e ComparaÃÃo da ResistÃncia à CorrosÃo por Pites do AÃo SuperaustenÃtico AL 6XN PLUS TM e dos AÃos InoxidÃveis AustenÃticos da SÃrie AISI 304L, 316L e 317L / Evaluation and comparison of resistance to pitting corrosion of the steel superaustenitic AL 6XN PLUS â and the series austenitic stainless steels AISI 304L, 316L and 317L.
As torres de destilaÃÃo de petrÃleo sofrem corriqueiramente com problemas relacionados à corrosÃo devido ao elevado Ãndice de acidez presente no petrÃleo exigindo uma elevada resistÃncia à corrosÃo por parte dos equipamentos utilizados. Dentre os materiais empregados na fabricaÃÃo e revestimento dos equipamentos, destacam-se os aÃos inoxidÃveis
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/11/2011
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11. Influência dos íons brometo e cloreto sobre a resistência à corrosão por pite de diferentes aços inoxidáveis austeníticos e ferríticos. / Influence of the bromide and chloride ions on pitting corrosion resistance of various austenitic and ferritic stainless steels.
A corrosão localizada em aços inoxidáveis pode se manifestar de várias formas, tais como, a corrosão por pite, em fresta e corrosão sob tensão. Estes tipos de corrosão ocorrem quando o metal é exposto em meios agressivos como o cloreto, entre outros. O objetivo deste trabalho é estudar o comportamento dos aços inoxidáveis austeníticos e ferríti
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/06/2011
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12. Characteristics of austenitic stainless steel nitrided in a hybrid glow discharge plasma
A nitriding process based on two distinct nitrogen glow discharge modes, with sample temperatures ranging from 380 0C to 480 0C, was employed to treat the surface of austenitic stainless steel (SS 304). The temperature is controlled exclusively by switching the operation conditions of the discharges. First mode of operation is the conventional one, named cat
Brazilian Journal of Physics. Publicado em: 2009-09