Effects of post weld heat treatment on friction welded duplex stainless steel joints

M, Mohammed Asif; Kulkarni, Anup; Sathiya, P.

doi:10.1016/j.jmapro.2015.10.005

Cited by 26 publications

(8 citation statements)

References 7 publications

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“…This result quite agreed with researches [14,17]. As the friction time is high, the ductility is reduced in Sample (1) because the inclusions may affect welding region due to low friction pressure, while at low friction time and high friction pressure these inclusions extracts out from weld region as its clear in Table 4, therefore [5,9]. The distribution of hardness slightly changes for the different regions.…”

Section: Mechanical Propertiessupporting

confidence: 89%

“…Similarly Asif, et al [8] studied the effect of heat input on mechanical properties and microstructures of 2205 DSS FW, different parameters were changed due to array with L9 orthogonal according to Design of Experiments. Tensile strength, toughness, micro hardness and corrosion behavior were evaluated, further in [9] the researchers found the effects of post weld heat treatment on 2205 DSSs weld. Ajith, et al [10][11][12][13] jointed two bars of 2205 DSSs and evaluated the mechanical properties and microstructure, optimized and performed several experiment to evaluate joint characterization, while Mercan, et al [14] optimized the welding parameters that affect increasing the fatigue strength of the joint between AISI 2205 and AISI 1020 bars.…”

Section: Introductionmentioning

confidence: 99%

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Efficiency of Dissimilar Friction Welded SAF 2205 Duplex Stainless Steel and 1045 Medium Carbon Steel Joints

Ibraheem¹

2021

Int J Metall Met Phys

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This study investigated the microstructure and mechanical properties of frictional welded joints between SAF 2205 duplex stainless steel and AISI 1045 medium carbon steel. The welded joints were fabricated by varying the friction pressure, friction time, and keeping the forging pressure, forging time and rotational speed as constant to obtain a constant range of welding temperature (780-800 °C). The results revealed that as the friction pressure increases and friction time decreases, weld interface hardness value, tensile strength and ductility increases. Also the hardness profiles present that weld interfaces exhibit higher hardness values than that of the two base metals. It was found that the highest efficiency of weld joint achieved was 93%, while the lowest was 76%. In addition, all welded specimens failed in the weld region. The microstructure analyses were carried out using optical microscopy and scanning electron microscopy equipped with energy dispersive spectroscopy.

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Section: Mechanical Propertiessupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Efficiency of Dissimilar Friction Welded SAF 2205 Duplex Stainless Steel and 1045 Medium Carbon Steel Joints

Ibraheem¹

2021

Int J Metall Met Phys

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“…However, even a very small change in chemical composition can cause a significant change in the structure and properties of steel. In addition to that, the ferrite-austenite ratio depends not only on the chemical composition of steel but also on the method of its processing [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…Another characteristic that occurs during the welding of duplex steels is a change in the mutual ratio of ferrite and austenite depending on the welding conditions. The heat input value has an especially significant influence, alongside the maximum achieved temperature and used cooling rate [2][3][4][5]9,10]. From works dealing with this issue, it was revealed that when increasing the heat input value and temperature, there is a higher ratio of austenite in the duplex structure [2,3].…”

Section: Introductionmentioning

confidence: 99%

Possibilities to Use Physical Simulations When Studying the Distribution of Residual Stresses in the HAZ of Duplex Steels Welds

et al. 2021

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Dual phase steels combine very good corrosion resistance with relatively high values of mechanical properties. In addition, they can maintain good plastic properties and toughness at both room temperature and lower temperatures as well. Despite all the advantages mentioned above, their utility properties can be reduced by technological processing, especially by the application of the temperature cycles. As a result, in the material remain residual stresses with local stress peaks, which are quite problematic especially during cyclic loading. Moreover, determining the level and especially the distribution of such residual stresses is very difficult for duplex steels both due to the structure duality and in light of the very small width of the heat-affected zone (HAZ). This is why the paper presents the possibilities of using physical simulations to study the effect of temperature cycles in residual stresses’ magnitude and distribution, where it is possible to study the HAZ in more detail as well as on a much larger sample width due to the utilization of special samples. In the thermal–mechanical simulator Gleeble 3500, temperature-stress cycles were applied to testing samples, generating stress fields with local peaks in the testing samples. In addition, the supplied steel X2CrMnNiN21-5-1 had different phase rations in the individual directions. Therefore, as the residual stresses were measured in several directions and at the same time, it was possible to safely confirm the suitability of the used measurement method. Moreover, the effect of the stress and strain on the change of partial phases’ ratios was observed. It has been experimentally confirmed that annealing temperatures of at least 700 °C are required to eliminate local stress peaks after welding. However, an annealing temperature of 550 °C seems to be optimal to maintain sufficient mechanical properties.

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“…Several methods of mechanical as well as thermal treatments-in situ and post-welding-exist, reducing detrimental tensile stresses or even introducing beneficial compressive residual stresses [1]. While some of these methods, for instance peening, affect primarily the nearsurface material condition [2], others like thermal treatments may influence the residual stress field through the whole weld depth [3][4][5][6][7][8][9][10]. However, all of these post-heat treatment processes are elaborate, rather cost-intensive or are, for example, in repairs, difficult to realize.…”

Section: Introductionmentioning

confidence: 99%

Effects of finish turning on an austenitic weld investigated using diffraction methods

Rebelo-Kornmeier

Hofmann

Gan

et al. 2020

Int J Adv Manuf Technol

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Arc welding generally introduces undesired local residual stress states on engineering components hindering high-quality performance in service. Common procedures to reduce the tensile residual stresses are post-heat treatments or mechanical surface treatments like hammering or shot-peening. Assessments of residual stress profiles of post-weld treatments underneath the weld surface are essential, especially in high safety exigency systems like pressure vessels or piping at power plants. In this study, neutron diffraction is used to determine the stress profile after finish milling of an austenitic steel weld in order to verify a chained finite element simulation predicting the final residual stress fields including milling and welding contributions. Non-destructive measurements with spatial resolutions of less than 0.2 mm within the first 1 mm from the surface were mandatory to confirm the finite element simulations of the coarse-grained austenitic material. In the data analysis procedure, the obtained near-surface data have been corrected for spurious strain effects whenever the gauge volume was partially immersed in the sample. Moreover, constraining the surface data to values obtained by x-ray diffraction and data deconvolution within the gauge volume enabled access of the steep residual stress profile within the first 1 mm.

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Effects of post weld heat treatment on friction welded duplex stainless steel joints

Cited by 26 publications

References 7 publications

Efficiency of Dissimilar Friction Welded SAF 2205 Duplex Stainless Steel and 1045 Medium Carbon Steel Joints

Efficiency of Dissimilar Friction Welded SAF 2205 Duplex Stainless Steel and 1045 Medium Carbon Steel Joints

Possibilities to Use Physical Simulations When Studying the Distribution of Residual Stresses in the HAZ of Duplex Steels Welds

Effects of finish turning on an austenitic weld investigated using diffraction methods

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