Microstructural Characterization and Mechanical Properties of TIG-Welded API 5L X60 HSLA Steel and AISI 310S Stainless Steel Dissimilar Joints

Saedi, A. H.; Hajjari, E.; Sadrossadat, S. Mohsen

doi:10.1007/s11661-018-4890-y

Cited by 23 publications

(5 citation statements)

References 21 publications

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“…The microstructure observation in the interface of WM (E316L, E308L and E309L) and BM-304 showed epitaxial growth where the grain growth of weld metal is perpendicular to fusion line. It's comparable to earlier study by A.H. Saedi et al (Saedi, Hajjari, and Sadrossadat 2018) who investigated DMW of AISI 310 stainless steel and HSLA steel welded by TIG welding. Dendritic structure was present probably due to high nickel amount at this region (Reddy et al 2014).…”

Section: Materials and Experimental Worksupporting

confidence: 89%

Microstructure and Hardness Profile of Dissimilar Lap Joint of Type 304 Stainless Steel to Ss400 Carbon Steel

Oktadinata

Putra

2019

met. indonesia

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Dissimilar metal welds between austenitic stainless steel and carbon steel are commonly used in oil and gas industries for certain reasons. The objective of this research is to asses the effect of filler metal and shielding gas on the microstructure and hardness of dissimilar lap joint of type 304 austenitic stainless steel to JIS SS400 low carbon steel. For the purpose of this investigation, the weldments were produced using flux-cored arc welding (FCAW). Three types of filler metals (E316L, E309L and E308L) and two different gas compositions (100%CO2 and 90%Ar+10%CO2) were selected to be used. Each of the weldments were analyzed on the microstructure characteristic and hardness profile of base metal (BM), heat affected zone (HAZ) and weld metal (WM) using optical microscope and microhardness Vickers. The metallographic examination revealed HAZ-SS400 contains martensites. Both HAZ-304 and WM show austenitic microstructure, with columnar and cellular sub-structures present at WM. The hardness profile of HAZ-304 is higher than BM-304, it may be attributed to the presence of the fine grains in HAZ-304 due to high temperature during welding. The hardness profile of WM-E309L exhibited the hardness from HAZ to WM tend to decrease linearly, while WM-E316L and WM-E308L showed the hardness from HAZ to WM also decreased but drastically dropped at fusion line (FL). The welds using E309L offer the best result in the point of view homogeneity of the hardness profile.

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Section: Materials and Experimental Worksupporting

confidence: 89%

Microstructure and Hardness Profile of Dissimilar Lap Joint of Type 304 Stainless Steel to Ss400 Carbon Steel

Oktadinata

Putra

2019

met. indonesia

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“…The measured values of hardness in the weld metal were almost similar to the base metal values, while the hardness values in the HAZ were higher. Saedi, Hajjari, and Sadrossadat [7] presented an analysis of microstructural characteristics and mechanical properties of the dissimilar joining weldments of the API 5L X60 ferritic HSLA steel and the AISI 310S austenitic stainless steel, by using theoptical and scanning electron microscopy, ferritometry, micro hardness, tensile, and impact tests. Verma and Taiwadem [8] showed that joining of duplex alloys is challenging due to number of embrittling precipitates and metallurgical changes, while inappropriate welding conditions and unbalanced phase ratio of austenite/ferrite, lead to solidification cracking, corrosion susceptibility, and lower ductility.…”

mentioning

confidence: 99%

Analysis of Selected Properties of Welded Joints of the HSLA Steels

et al. 2020

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This paper presents research of the impact toughness and hardness distribution in specific zones of a ‘single V’butt multiple-pass welded joints of the high-strength low-alloyed steels. Obtained values of the impact toughness are analyzed in correlation with a microstructure in specific zones of the welded joint, together with the micro hardness distribution found in the related zones. Based on the carried out analysis and results obtained in experiments, the applied technology of welding was evaluated. The original conclusions on influence of the selected welding procedure manual metal arc (MMA) for the root passes and metal active gas (MAG) for the filling and covering passes) on impact toughness of the high-strength low-alloyed steels are drawn. The paper also presents discussion on the valid standards and recommendations related to welding of those steels, from the aspect of applications in design of steel welded constructions.

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“…Based on the previous results studied, it can be said that the possible carbides can be NbC and titanium carbide (TiC). 40…”

Section: Resultsmentioning

confidence: 99%

“…Based on the previous results studied, it can be said that the possible carbides can be NbC and titanium carbide (TiC). 40 The EPMA elemental mapping of the inter-dendritic region of the ERNiCr-3 WFZ is illustrated in Figure 14. The Nb, Ti, and Cr spot is visible from the EPMA result.…”

Section: Weldments In As-welded Statementioning

confidence: 99%

Residual stress analysis, microstructural characterization, and mechanical properties of tungsten inert gas-welded P92/AISI 304L dissimilar steel joints

Dak

Pandey

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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In the present work, the creep strength-enhanced ferritic martensitic P92 steel was welded with 304L austenitic stainless steel. The dissimilar joining of these two different grades of material was performed by using tungsten inert gas welding process. The nickel-based ERNiCr-3 welding consumable was used. The influence of post-weld heat treatment (760 °C, 2h), called as tempering, was also investigated. The secondary electron and optical image confirmed that ERNiCr-3 weld metal is accompanied by an equiaxed austenitic microstructure with Ni weight percentage of 68.29%. The energy-dispersive X-ray spectroscopy and electron probe microanalyzer results of the weld fusion zone revealed the Nb, Cr, and Ti segregation in the inter-dendritic region. The elemental mapping of the carbon-depleted zone, and the interface was performed using an electron probe microanalyzer, which revealed the diffusion of Ni, Cr, and Fe across the interface of P92 steel and ERNiCr-3 filler weld. The tensile test result indicated that part of the dissimilar weld joints (DWJs) with relatively weak ultimate tensile strength was ERNiCr-3 weld metal. The ultimate tensile strength value of the DWJs was observed as 610 MPa and 580 MPa in the as-weld and post-weld heat treatment situations, respectively. The Charpy V-notch impact energy of the ERNiCr-3 weld fusion zone was achieved as 135 ± 2 J and 140 ± 2 J in as-weld and post-weld heat treatment situations, respectively. The low impact toughness of the ERNiCr-3 weld metal was attributed to the presence of niobium carbide (NbC) and titanium carbide (TiC) particles. The peak longitudinal residual stress of 490 MPa and transverse residual stress of 442 MPa were noted in the ERNiCr-3 weld fusion zone at a depth of 3 mm from the top surface. The tempering heat treatment exhibited a significant drop in the residual stresses value for the weld fusion zone and heat affected zone (HAZ).

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Microstructural Characterization and Mechanical Properties of TIG-Welded API 5L X60 HSLA Steel and AISI 310S Stainless Steel Dissimilar Joints

Cited by 23 publications

References 21 publications

Microstructure and Hardness Profile of Dissimilar Lap Joint of Type 304 Stainless Steel to Ss400 Carbon Steel

Microstructure and Hardness Profile of Dissimilar Lap Joint of Type 304 Stainless Steel to Ss400 Carbon Steel

Analysis of Selected Properties of Welded Joints of the HSLA Steels

Residual stress analysis, microstructural characterization, and mechanical properties of tungsten inert gas-welded P92/AISI 304L dissimilar steel joints

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