A comparative evaluation of gas tungsten and shielded metal arc welds of a “ferritic” stainless steel

Mohandas, T.; Reddy, G. Madhusudhan; Naveed, Mohammed

doi:10.1016/s0924-0136(99)00092-8

Cited by 106 publications

(38 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…3) Villafuerte and Kerr 4) attempted to weld FSS by gas tungsten arc (GTA) welding process and observed that approximately for constant values of heat input per unit distance, the equiaxed fraction increased with welding speed, as long as sufficient titanium and aluminum were present to form nucleate for the second phase. Mohandas et al 5) made a comparative evaluation of gas tungsten and shielded metal arc (SMA) welds of AISI 430 ferritic stainless steel and found that the greater ductility and strength of GTA welds as compared to those of SMA welds can be attributed to the equi-axed morphology of the fusion-zone grains in the GTA welds, and also to inert gas shielding. Meyers and Toit 6) investigated the impact properties of 11-12 % chromium steels and found that carbon and nitrogen affect the impact properties of the heat-affected zone in these steels.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Crack Growth Behavior of AISI 409M Grade Ferritic Stainless Steel Welded Joints Using Austenitic, Ferritic and Duplex Stainless Steel Electrodes

2008

View full text Add to dashboard Cite

This paper reveals the fatigue crack growth behaviour of the shielded metal arc welded AISI 409M grade ferritic stainless steel joints fabricated using austenitic stainless steel (ASS), ferritic stainless steel (FSS) and duplex stainless steel (DSS) electrodes. Centre cracked tensile (CCT) specimens were prepared to evaluate fatigue crack growth behaviour. Servo hydraulic controlled fatigue testing machine with a capacity of 100 kN was used to evaluate the fatigue crack growth behaviour of the welded joints. It is found that the joints fabricated by DSS electrode showed superior fatigue crack growth resistance compared to the joints fabricated by ASS and FSS electrodes. Higher yield strength and relatively higher toughness of the weld metal may be the reasons for superior fatigue performance of the joints fabricated by DSS electrode.KEY WORDS: ferritic stainless steel; shielded metal arc welding; fatigue crack growth behaviour; austenitic stainless steel; duplex stainless steel.

show abstract

Section: Introductionmentioning

confidence: 99%

Fatigue Crack Growth Behavior of AISI 409M Grade Ferritic Stainless Steel Welded Joints Using Austenitic, Ferritic and Duplex Stainless Steel Electrodes

2008

View full text Add to dashboard Cite

show abstract

“…However, the addition of titanium alone did not prompt the development of equiaxed grains, in spite of an increased tendency for branching and protrusion of some primary stalks ahead of others [8]. Mohandas et al [9] did comparative evaluation of GTA and Shielded metal arc (SMA) welds of AISI 430 stainless steel and observed that GTA welds had greater ductility and strength as compared to those of SMA welds. Impact properties of the heat affected zone are influenced by the carbon and nitrogen contents in 11-12% chromium steel [10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Filler Composition and Post Weld Heat Treatment on Mechanical and Metallurgical Properties of GTA Welded AISI 409M Stainless Steel Joints

Vishwakarma¹

2017

IJRASET

View full text Add to dashboard Cite

The effect of filler composition and post weld heat treatment on mechanical and metallurgical properties of Gas Tungsten Arc welded AISI 409 Stainless Steel was studied. Rolled plates of 4mm thickness have been used as the base material for preparing double pass one is root pass and second is cover pass butt welded joints. Welding of ferritic stainless steel plate has been performed in three phases. During 1 st phase of welding, 409M ferritic stainless steel with similar filler metal is used at direct current of 100A, during 2 nd phase of welding of base plates by using 309L austenitic stainless steel filler metal is used and during 3 rd phase of welding, 410 martens tic stainless steel filler metal is used at a direct current. Maximum UTS value of welded joints possessed by the welded joints which is fabricated with 409M filler, maximum Impact strength value possessed by the welded joints which is fabricated with 309L, and maximum average hardness is recorded in WJ 2 (342VHN) in as-welded condition. Grain coarsening effects was revealed in the microstructures images that had been taken by the optical microscope in all the welded joints after PWHT as compared to the microstructure images of welded joints in as-welded condition.

show abstract

“…Destaca-se ainda que a literatura faz referência ao processo PTA, por produzir depósitos com estruturas mais refinadas quando comparadas aquelas obtidas por outros processos de soldagem de revestimentos, que utilizam materiais de adição na forma de arames, sugerindo que a condição atomizada da liga a ser depositada pode interferir nas características dos depósitos [7][8][9]. Efetivamente poucos trabalhos são encontrados a respeito e, na maioria, as comparações são realizadas entre técnicas de deposição com características bem diferentes entre si [10][11][12][13][14][15][16].…”

Section: Introductionunclassified

Influência da corrente e granulometria do material de adição nos revestimentos processados por PTA

Bond¹,

Becker

D'Oliveira

2011

Soldag. insp.

View full text Add to dashboard Cite

Resumo Revestimentos soldados são aplicados com o intuito de prolongar a vida útil IntroduçãoA campanha operacional de equipamentos que operam em ambientes agressivos pode ser ampliada se estes forem protegidos por revestimentos. Para isto existem várias técnicas de proteção superficial de componentes tais como: pintura, galvanização, metalização por aspersão térmica, cladização (chapas revestidas), eletrodeposição (Cu, Ni), por difusão (cementação e deposição em fase gasosa), redução química (niquelação), soldagem (hardfacing) [1,2].O termo hardfacing refere-se à deposição de um revestimento soldado de composição química distinta daquela do metal de base (componente) com o objetivo de alcançar na superfície propriedades específicas e que o substrato não possui. Existe uma grande variedade de materiais que podem ser aplicados como revestimentos, entre os mais importantes destacam-se as superligas a base de níquel e a base de cobalto. Os substratos mais comumente utilizados são os aços de baixo carbono ou médio carbono e os aços inoxidáveis, [2,3]. As superligas a base de níquel são conhecidas pela excelente resistência à corrosão em elevadas temperaturas. Já aquelas a base de cobalto destacam-se pela elevada resistência ao desgaste, sendo a mais e empregada a superliga denominada Stellite 6. Este material possui excelente resistência às várias formas de degradação química e mecânica sob temperaturas, mantém a dureza até 800°C, e tem baixa tendência ao aparecimento de trincas [4]. No entanto, as propriedades dos revestimentos de ligas de cobalto dependem do processo de deposição e para cada tipo de processo, dos parâmetros de processamento utilizados. Para a deposição são utilizados os processos de soldagem oxigás, a arco e laser, os quais são aplicados, preferencialmente, para obter espessuras maiores quando comparados aos processos de aspersão térmica, nos quais ocorre um ancoramento mecânico entre material de base e o revestimento [2]. Segundo Wu et al [3]

show abstract

A comparative evaluation of gas tungsten and shielded metal arc welds of a “ferritic” stainless steel

Cited by 106 publications

References 2 publications

Fatigue Crack Growth Behavior of AISI 409M Grade Ferritic Stainless Steel Welded Joints Using Austenitic, Ferritic and Duplex Stainless Steel Electrodes

Fatigue Crack Growth Behavior of AISI 409M Grade Ferritic Stainless Steel Welded Joints Using Austenitic, Ferritic and Duplex Stainless Steel Electrodes

Effect of Filler Composition and Post Weld Heat Treatment on Mechanical and Metallurgical Properties of GTA Welded AISI 409M Stainless Steel Joints

Influência da corrente e granulometria do material de adição nos revestimentos processados por PTA

Contact Info

Product

Resources

About