Mechanical properties of ferritic stainless steel welds in using type 409 and 430 filler metals

Anttila, Severi; Karjalainen, L.P.; Lantto, S.

doi:10.1007/s40194-013-0033-7

Cited by 11 publications

(6 citation statements)

References 12 publications

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“…The axial grains also act as hindrance to the elongation of columnar grains that originated from the fusion boundary and restricted the grain growth [49]. A similar coarse and large grains were reported by Lakshminarayanan et al and Anttila et al [23,29].…”

Section: Macrostructural and Microstructural Examinationsupporting

confidence: 68%

“…The microhardness increased to 208HV at middle section and 229HV at bottom section. The change in hardness between the various weld zone sections was directly linked to the attained microstructure [29,56]. The heat input is the main considerable factor that affects the microhardness of the weld joint.…”

Section: Microhardnessmentioning

confidence: 99%

“…Heat treatment after welding is an important technique to recover the microstructure and enhance the mechanical properties of FSS [26][27][28]. Anttila et al [29] concluded that the PWHT of AISI409 FSS joints fabricated using GMAW process improved the ductility and tensile strength. Taban et al [30] mentioned that PWHT at 750°C for 30 min.…”

Section: Introductionmentioning

confidence: 99%

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Metallurgical and Mechanical Properties Variation Along the Thickness of Electron Beam Welded Ferritic Stainless Steel Joints After Postweld Heat Treatment

Doomra¹,

Sandhu²

2021

Metallogr. Microstruct. Anal.

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The effect of the postweld heat treatment (550°C for 75 min) on the electron beam welded joints of AISI 409 thick plates was assessed in terms of tensile and impact performance. Through thickness, analysis was carried out by dividing the weld joint into three sections, i.e., top section, middle section, and bottom section. The results showed that the size of the grains got refined at the bottom. The heat treatment also led to reduction in the grain size. X-ray diffraction analysis showed the presence of martensite in the weld joint which reduced after heat treatment. The 532 MPa tensile strength was achieved after the heat treatment for the specimens extracted from the bottom of the welded plate. The impact toughness of the weld joint was 37% less than the base metal; however, impact toughness of 31J was achieved at the top section after postweld heat treatment.

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Section: Macrostructural and Microstructural Examinationsupporting

confidence: 68%

Section: Microhardnessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Metallurgical and Mechanical Properties Variation Along the Thickness of Electron Beam Welded Ferritic Stainless Steel Joints After Postweld Heat Treatment

Doomra¹,

Sandhu²

2021

Metallogr. Microstruct. Anal.

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“…This gain in popularity is due to its high thermal conductivity, stress corrosion resistance, and low coefficient of expansion, which makes it suitable in numerous applications like exhaust manifolds, railway wagons, drums of machines, bus frames, electrical equipment, etc. [4][5][6]. They are considered as a low cost substitute to austenitic steel owing to its low nickel content [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…It has also been suggested by the various researcher that post-weld heat treatment (PWHT) of ferritic stainless steel reduces the residual stresses and improves the toughness and ductility of the weld joints [4,10,[31][32][33][34]. Vidyarthi et al [35] investigated the influence of PWHT on the metallurgical and mechanical properties of AISI 409 ferritic steel.…”

Section: Introductionmentioning

confidence: 99%

Effect of post weld heat treatment on metallurgical and mechanical properties of electron beam welded AISI 409 ferritic steel

2020

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The applicability of ferritic stainless steel is restricted due to its low weldability, and this can be attributed to the severe grain growth in the weld zone during the solidification of the weld pool and formation of fully ferritic structure. This study aims to investigate the weldability of 18 mm thick AISI 409 ferritic stainless steel plates using an electron beam welding process without the use of filler metal. The joints were investigated for metallography characterization (microstructure, macrostructure, and microhardness) and mechanical behavior (tensile strength and impact toughness) in as-welded condition and after post-weld heat treatment at 550 ºC for 75 minutes. The weld zone exhibited large columnar grains in the direction perpendicular to the weld centerline and got refined after post-weld heat treatment. The ultimate tensile strength, yield strength, and microhardness of the weld zone were found higher than the base metal. The impact toughness of weld zone was found to be reduced by 45%, but the post-weld heat treatment improved the toughness by 40%. Results revealed that the electron beam welding process could be successfully employed for welding of AISI 409 ferritic stainless steel, which will increase its application range that requires thicker section of welded plates. Post-weld heat treatment was found to be advantageous for improving the microstructure and mechanical properties.

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The High-Temperature Mechanical Properties of EN 1.4509 Stainless Steel Cast Using Investment Casting

Mao

Jiang

et al. 2019

J. of Materi Eng and Perform

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Mechanical properties of ferritic stainless steel welds in using type 409 and 430 filler metals

Cited by 11 publications

References 12 publications

Metallurgical and Mechanical Properties Variation Along the Thickness of Electron Beam Welded Ferritic Stainless Steel Joints After Postweld Heat Treatment

Metallurgical and Mechanical Properties Variation Along the Thickness of Electron Beam Welded Ferritic Stainless Steel Joints After Postweld Heat Treatment

Effect of post weld heat treatment on metallurgical and mechanical properties of electron beam welded AISI 409 ferritic steel

The High-Temperature Mechanical Properties of EN 1.4509 Stainless Steel Cast Using Investment Casting

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