Microstructure, mechanical properties and corrosion behavior of laser welded dissimilar joints between ferritic stainless steel and carbon steel

Wu, Wenyong; Hu, Shengsun; Shen, Junqi

doi:10.1016/j.matdes.2014.09.064

Cited by 79 publications

(38 citation statements)

References 18 publications

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“…Owing to the differences the metallurgical and physico-mechanical behaviour of joined dissimilar materials (DM), they have attracted significant interest when compared to the joints of similar materials. Components with adequate ductility, high strength, good corrosion resistance, and desirable electrical and thermal conductivities have been achieved through DM welding [3,4]. Several DM welding techniques have been reported, including Welding-Brazing [5][6][7], Arc [8][9][10], Friction [11], Friction stir [12,13], Ultrasonic [14,15], Explosive welding [16], Laser [17][18][19], and Hybrid Laser-Arc welding [20,21].…”

Section: Introductionmentioning

confidence: 99%

Fiber Laser Welding of Dissimilar 2205/304 Stainless Steel Plates

Mohammed

Ishak

Ahmad

et al. 2017

Metals

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Abstract:In this study, an attempt on pulsed-fiber laser welding on an austenitic-duplex stainless steel butt joint configuration was investigated. The influence of various welding parameters, such as beam diameter, peak power, pulse repetition rate, and pulse width on the weld beads geometry was studied by checking the width and depth of the welds after each round of welding parameters combination. The weld bead dimensions and microstructural progression of the weld joints were observed microscopically. Finally, the full penetration specimens were subjected to tensile tests, which were coupled with the analysis of the fracture surfaces. From the results, combination of the selected weld parameters resulted in robust weldments with similar features to those of duplex and austenitic weld metals. The weld depth and width were found to increase proportionally to the laser power. Furthermore, the weld bead geometry was found to be positively affected by the pulse width. Microstructural studies revealed the presence of dendritic and fine grain structures within the weld zone at low peak power, while ferritic microstructures were found on the sides of the weld metal near the SS 304 and austenitic-ferritic microstructure beside the duplex 2205 boundary. Regarding the micro-hardness tests, there was an improvement when compared to the hardness of duplex and austenitic stainless steels base metals. Additionally, the tensile strength of the fiber laser welded joints was found to be higher when compared to the tensile strength of the base metals (duplex and austenitic) in all of the joints.

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Section: Introductionmentioning

confidence: 99%

Fiber Laser Welding of Dissimilar 2205/304 Stainless Steel Plates

Mohammed

Ishak

Ahmad

et al. 2017

Metals

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“…On account of the high strength, good wear resistance and a rather low price, carbon steel is extensively used to manufacture structural components such as axles, crankshafts, couplings and gears [2]. Joining of carbon steel to stainless steel can combine the advantages of both metals and is full of promise in these field.…”

Section: Introductionmentioning

confidence: 99%

Microstructure characterization and properties of carbon steel to stainless steel dissimilar metal joint made by friction welding

Qin

Geng

et al. 2015

Materials & Design

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“…Moreover, a solid solution of nickel (Ni s.s) was observed on the 4J29 and Ni interlayer sides, which was due to the high concentration of Ni and the sufficient solid solubility of Ni, Fe, and Co. On the other hand, a Ni s.s was also formed on the 316L and Ni interlayer sides, which promoted a good bond between the 316L stainless steel and the Ni interlayer. Compared with other literature reports [1,6,12], there has been no formation of the detrimental phase and segregation of sulfur and phosphor to result in hot cracks at interfaces. It is concluded here that a Ni interlayer can serve as an effective diffusion barrier for the bonding of 316L and 4J29.…”

Section: Xrd Analysismentioning

confidence: 56%

“…Nekouie et al [11] reported that the microstructure of dissimilar joints could be controlled by adjusting the specific point energy and beam offset when low carbon steel and austenitic stainless steel were welded via laser welding. Wu et al [12] conducted laser welding between ferritic stainless steel and carbon steel. Lath martensite, upper bainite and widmanstatten structure ferrite were formed in the weld bead.…”

Section: Introductionmentioning

confidence: 99%

The Interfacial Microstructure and Mechanical Properties of Diffusion-Bonded Joints of 316L Stainless Steel and the 4J29 Kovar Alloy Using Nickel as an Interlayer

Song

Jiang

Shao

et al. 2016

Metals

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316L stainless steel ) and a Kovar (Fe-29Ni-17Co or 4J29) alloy were diffusion-bonded via vacuum hot-pressing in a temperature range of 850-950 • C with an interval of 50 • C for 120 min and at 900 • C for 180 and 240 min, under a pressure of 34.66 MPa. Interfacial microstructures of diffusion-bonded joints were characterized by optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS). The inter-diffusion of the elements across the diffusion interface was revealed via electron probe microanalysis (EPMA). The mechanical properties of the joints were investigated via micro Vickers hardness and tensile strength. The results show that an Ni interlayer can serve as an effective diffusion barrier for the bonding of 316L stainless steel and the 4J29 Kovar alloy. The composition of the joints was 316L/Ni s.s (Fe-Cr-Ni)/remnant Ni/Ni s.s (Fe-Co-Ni)/4J29. The highest tensile strength of 504.91 MPa with an elongation of 38.75% was obtained at 900 • C for 240 min. After the width of nickel solid solution (Fe-Co-Ni) sufficiently increased, failure located at the 4J29 side and the fracture surface indicated a ductile nature.

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Microstructure, mechanical properties and corrosion behavior of laser welded dissimilar joints between ferritic stainless steel and carbon steel

Cited by 79 publications

References 18 publications

Fiber Laser Welding of Dissimilar 2205/304 Stainless Steel Plates

Fiber Laser Welding of Dissimilar 2205/304 Stainless Steel Plates

Microstructure characterization and properties of carbon steel to stainless steel dissimilar metal joint made by friction welding

The Interfacial Microstructure and Mechanical Properties of Diffusion-Bonded Joints of 316L Stainless Steel and the 4J29 Kovar Alloy Using Nickel as an Interlayer

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