Joining phenomena and tensile strength of joint between Ni-based superalloy and heat-resistant steel by friction welding

Kimura, Masao; Nakashima, K; Kusaka, Masahiro; Kaizu, Koichi; Nakatani, Yujiro; Takahashi, Masao

doi:10.1007/s00170-019-03611-7

Cited by 17 publications

(4 citation statements)

References 49 publications

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“…It was concluded that lower heating pressures decreases the material lost as flash during welding, [1]. A similar process optimization study, [15] showed that with decrease in friction time, the amount of axial shortening was reduced, which in turn reduced the quantity of metal lost as flash, this reduces costs significantly. It was concluded from his preliminary studies that, the forging pressure extensively affected the tensile properties of the rotary friction welds, [16].…”

Section: Literature Reviewmentioning

confidence: 94%

The Effect of Welding Friction Parameters on the Mechanical Properties of the Maintained Anodic Yok in the Aluminum Industry

2023

Journal of the Egyptian Society of Tribology

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In this paper, friction welding was applied in the aluminum industry at repairing operation. The process of repairing the anodic yoke, which was carried out by welding in the traditional way, was replaced by the method of rotary friction welding, as a friction welding machine was designed, manufactured and assembled, and the welding process was performed. The material selected for study and experimentation of RFW is low carbon steel S37 and rod dia. ϕ 130 mm. A setup of a rotary friction machine equipped with an electric motor of 75kW power was used. The rotary friction welding process was performed on the anodic yoke pins, that before being welded by fusion welding. The characteristics of microstructure and tensile strength in rotary friction welding of yoke pins were examined. The microstructure test showed friction welded pins had smaller grain size compared to those welded by fusion welding due to recrystallization and transformation of coarse ferrite phase into grain refined ferritic-pearlitic phase. The tensile strength of friction welded pins was higher than that of the fusion welded pins due to annealing effect.

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Section: Literature Reviewmentioning

confidence: 94%

The Effect of Welding Friction Parameters on the Mechanical Properties of the Maintained Anodic Yok in the Aluminum Industry

2023

Journal of the Egyptian Society of Tribology

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“…Inconel 718 and SS410 martensitic stainless steel friction weld joints were produced by varying the friction welding parameters, and it was found that the higher friction pressures returned higher joint strengths [21,22]. Kimura et al [23] optimised the amount of superalloy 617 lost as a flash to minimise costs. In a similar study [24], an Inconel 600-SS 304 joint was found to retain its strength up to 450°C.…”

Section: Introductionmentioning

confidence: 99%

“…Kimura et al. [23] optimised the amount of superalloy 617 lost as a flash to minimise costs. In a similar study [24], an Inconel 600–SS 304 joint was found to retain its strength up to 450°C.…”

Section: Introductionmentioning

confidence: 99%

Rotary friction welding of Inconel 718 – AISI 304 stainless steel dissimilar joint

Ajay

Kumar

Babu

et al. 2023

Materials Science and Technology

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Nickel-based superalloy Inconel 718 and austenitic stainless steel AISI 304 are joined by rotary friction welding. The changes in microstructure and mechanical properties of the dissimilar joint for solutionising, solutionising + aging, and post-weld aging treatment, with a prior solution heat treatment, are studied. Two distinct microstructural zones, the FDZ (fully deformed zone) and the TMAZ (thermo-mechanically affected zone) are observed in all weldments. The post-weld aged joint sample shows the highest tensile strength and hardness due to the precipitation of γ′ (Ni3(Ti, Al)) and γ″ (Ni3Nb) strengthening precipitates. The solution-treated sample shows the highest yield strength, while the solutionising + aging treatment is found to deteriorate the mechanical properties of the dissimilar joint. The observed changes in the mechanical properties are investigated based on microstructure and electron dispersive spectroscopy.

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“…The presence of precipitates located at the grain boundaries of the weld zone could be the main reason for the improvement in strength after PWHT. Kimura et al [23] investigated the joining of a nickel-based superalloy (Alloy 617) and heat-resistant steel (HRS) using friction welding. The joints were prepared with various welding parameter values, including a rotational speed of 1650 rpm, forging pressure of 30-360 MPa, forging time of 6 s, friction pressure of 30-90 MPa, and friction time of 0.04-40 s. They observed that more flash was observed on the HRS side compared to Alloy 617, which may be attributed to the drop in flow stress of the HRS at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Influence of Microstructure and Mechanical Properties of Dissimilar Rotary Friction Welded Inconel to Stainless Steel Joints

et al. 2023

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The present study aims to evaluate the microstructure, grain size, and mechanical properties of the dissimilar AISI 316L/Inconel 718 (IN 718) rotary friction welded joints under both the as-welded and post-weld heat treatment (PWHT) conditions. Because of reduced flow strength at elevated temperatures, the AISI 316L and IN 718 dissimilar weldments exhibited more flash formation on the AISI 316L side. At higher rotating speeds during friction welding, an intermixing zone was created at the weld joint interface due to the material softening and squeezing. The dissimilar welds exhibited distinctive regions, including the fully deformed zone (FDZ), heat-affected zone (HAZ), thermo-mechanically affected zone (TMAZ), and the base metal (BM), located on either side of the weld interface. The dissimilar friction welds, AISI 316L/IN 718 ST and AISI 316L/IN 718 STA, exhibited yield strength (YS) of 634 ± 9 MPa and 602 ± 3 MPa, ultimate tensile strength (UTS) of 728 ± 7 MPa and 697± 2 MPa, and % elongation (% El) of 14 ± 1.5 and 17 ± 0.9, respectively. Among the welded samples, PWHT samples exhibited high strength (YS = 730 ± 2 MPa, UTS = 828 ± 5 MPa, % El = 9 ± 1.2), and this may be attributed to the formation of precipitates. Dissimilar PWHT friction weld samples resulted in the highest hardness among all the conditions in the FDZ due to the formation of precipitates. On the AISI 316L side, prolonged exposure to high temperatures during PWHT resulted in grain growth and decreased hardness. During the tensile test at ambient temperature, both the as-welded and PWHT friction weld joints failed in the HAZ regions of the AISI 316L side.

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Joining phenomena and tensile strength of joint between Ni-based superalloy and heat-resistant steel by friction welding

Cited by 17 publications

References 49 publications

The Effect of Welding Friction Parameters on the Mechanical Properties of the Maintained Anodic Yok in the Aluminum Industry

The Effect of Welding Friction Parameters on the Mechanical Properties of the Maintained Anodic Yok in the Aluminum Industry

Rotary friction welding of Inconel 718 – AISI 304 stainless steel dissimilar joint

Influence of Microstructure and Mechanical Properties of Dissimilar Rotary Friction Welded Inconel to Stainless Steel Joints

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