Investigation on microstructure and tensile properties of dissimilar weld joints between AISI 316l and duplex 2205 stainless steel

Tumu, Dhananjay Parashar; Subramani, P.; Kumar, K. Gokul; Manikandan, M.; Mohan, C G; Arivazhagan, N.; Rajan, Deva N.

doi:10.1088/1757-899x/402/1/012075

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…Many studies have investigated the dissimilar DSS 2205 and ASS 316L weld bead by testing different filler metals. For instance, Dhananjay et al [ 30 ] tested different filler metals ER316L and ER309L. They showed in this study that the maximum average tensile strength of 548 MPa was obtained while ER316L filler metal was used compared to the value of 544 MPa when ER309L was tested.…”

Section: Introductionmentioning

confidence: 82%

Mechanical, Microstructure, and Corrosion Characterization of Dissimilar Austenitic 316L and Duplex 2205 Stainless-Steel ATIG Welded Joints

et al. 2022

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The present work analyzed the microstructure, mechanical, and corrosion properties of a dissimilar activated tungsten inert gas (ATIG) welded 2205 duplex stainless-steel (2205 DSS) plate and AISI 316L austenitic stainless steel (316L ASS) and compared them to conventional dissimilar welded tungsten inert gas (TIG). The mixing design method is a tool used to establish the optimal combined flux to achieve a full-penetrated weld bead in one single pass. A microstructure study was carried out by scanning electron microscopy (SEM). The ATIG and TIG fusion zones revealed a matrix ferrite structure with intragranular austenite, Widmanstätten needles, allotriomorphic austenite at the grain boundaries, and plate-like precipitates free of deleterious phases such as sigma and chi phases or second austinite owing to the moderate heat input provided of 0.8 kJ/mm. Ferrite volume proportion measurements were carried out utilizing the areas image processing software. The average ferrite volume proportion attained 54% in the ATIG weld zone; however, it decreased to 47% for the TIG weld zone. The results showed that the optimal flux composed by 91% Mn2O3 and 9% Cr2O3 allowed a full penetrated weld to be obtained in one single pass. However, a double side weld is required for conventional TIG processes. The values of the tensile (599 Mpa), hardness (235 HV), and impact test (267 J/cm2) measurements of ATIG welds were close to those of conventional TIG welds. The elaborated flux did not degrade the mechanical properties of the joint; on the contrary, it reinforced the strength property. The width of the ATIG heat-affected zone was narrower than that of TIG welding by 2.6 times, ensuring fewer joint distortions. The potentiodynamic polarization test results showed a better electrochemical behavior for ASS 316L than with the weldment and the parent metal of DSS 2205.

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Section: Introductionmentioning

confidence: 82%

Mechanical, Microstructure, and Corrosion Characterization of Dissimilar Austenitic 316L and Duplex 2205 Stainless-Steel ATIG Welded Joints

et al. 2022

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“…Jatimurti et al [3] had made a research investigation to analyze the relationships between output responses: microstructure and hardness, and welding parameters like welding current and travel speed in TIG welding of type 316L stainless steel. Tumu et al [11] had been welded the AISI 316L and Duplex 2205 stainless steel using pulsed current gas tungsten arc welding with ER316L and ER309L filler wires. Vasantharaja and Vasudevan [12] had been conducted experimental analysis on activated TIG welding to determine the effects of process welding variables on bead shape parameters: depth of penetration, bead width and heat affected zone width, using RSM and desirability function approach (DFA).…”

Section: Introductionmentioning

confidence: 99%

Parametric Studies on TIG Welding of 316L Stainless Steel by RSM and TLBO

Moi

Rudrapati

Bandyopadhyay

et al. 2019

MSF

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Present study is planned to analyze the effects of welding process parameters on quality characteristics of TIG welded 316L austenitic stainless steels (ASS). The input parameters considered in the study are: welding current, speed and gas flow rate. Butt-joints of ASS sheets have been made as per Box-Behnken design of response surface methodology (RSM). After welding operation, tensile tests have been conducted on welded samples and observations of ultimate tensile strength (UTS) has been noted. Mathematical modeling has been made to relate the input parameters and output response by RSM. Teaching leaning-based optimization (TLBO) approach has been used to optimize the UTS. The influences of input welding parameters on UTS has been studied and analyzed through contour plots. Confirmatory tests have been conducted to validate the predicted parametric condition obtained by integrated RSM and TLBO. From the study, it is found that RSM and TLBO is efficient to maximize UTS in TIG welding operation.

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“…Os aços inoxidáveis duplex (AID) são compostos por uma estrutura mista de ferrita e austenita, em proporções aproximadamente iguais, o que promove a combinação de excelentes propriedades mecânicas e elevada resistência à corrosão [1][2][3][4][5][6][7][8][9][10], e torna estes materiais bastante atrativos do ponto de vista econômico e tecnológico [1,4,[11][12][13]. O equilíbrio dessas fases é alcançado através de tratamento térmico de solubilização, seguido de um resfriamento Tecnol.…”

Section: Introductionunclassified

Efeito De Tratamentos Térmicos Nas Propriedades Mecânicas De Chapas Soldadas Do Aço Inoxidável Duplex Uns S32304

Caetano¹,

Luz²,

Coelho³

et al. 2019

TMM

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Versão de Trabalho Apresentado na ABM Week 2018 a Resumo O aço inoxidável duplex UNS S32304 tem sido investigado como candidato para construção de um receptáculo para transporte de material radioativo associado ao futuro Reator Multipropósito Brasileiro (RMB). O foco deste trabalho é avaliar o efeito de diferentes temperaturas de tratamento térmico em chapas de UNS S32304 com espessura de 1,8mm após processo de soldagem TIG autógeno. Utilizou-se corrente pulsada com polaridade direta, gás de proteção com uma mistura de argônio e 2% de nitrogênio e um sistema de acionamento automático com controle digital dos parâmetros. Os corpos de prova soldados e como recebido foram tratados termicamente durante 8h a temperaturas de 475, 600 e 750°C seguido de resfriamento ao ar. As amostras foram submetidas a ensaios de tração com taxa de deformação de 10-4 s-1. Comprovou-se que somente a amostra tratada a 600°C mostrou um comportamento tensão-deformação similar à amostra como recebida. Para as amostras soldadas, o tratamento a 600°C aumentou o limite de resistência à tração e o alongamento % total em relação à amostra somente soldada e sem tratamento térmico. Palavras-chave: Aço inoxidável duplex; Tratamento térmico; Tensão-deformação; Soldagem TIG.

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Investigation on microstructure and tensile properties of dissimilar weld joints between AISI 316l and duplex 2205 stainless steel

Cited by 5 publications

References 10 publications

Mechanical, Microstructure, and Corrosion Characterization of Dissimilar Austenitic 316L and Duplex 2205 Stainless-Steel ATIG Welded Joints

Mechanical, Microstructure, and Corrosion Characterization of Dissimilar Austenitic 316L and Duplex 2205 Stainless-Steel ATIG Welded Joints

Parametric Studies on TIG Welding of 316L Stainless Steel by RSM and TLBO

Efeito De Tratamentos Térmicos Nas Propriedades Mecânicas De Chapas Soldadas Do Aço Inoxidável Duplex Uns S32304

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