Effect of laser beam welding on microstructure, tensile strength and fatigue behaviour of duplex stainless steel 2205

Odermatt, Anton; Ventzke, Volker; Dorn, Falk; Dinse, René; Merhof, Peter; Kashaev, Nikolai

doi:10.1016/j.jmapro.2021.10.020

Cited by 32 publications

(4 citation statements)

References 24 publications

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“…Hybrid processes [ 20 , 21 ], as well as a specific type of generated beam [ 22 , 23 , 24 , 25 ] are also gaining importance. A separate guess is the issue of the impact of the heat input into the material and post-weld heat treatment of both 17-4 PH steel and other stainless steels, e.g., austenitic [ 19 , 23 , 26 , 27 ], ferritic [ 24 ], duplex [ 28 ], or aluminum [ 29 , 30 ]. This indicates that despite the fact that construction materials are characterized by good weldability, the method and effect of the heating and cooling, as well as the possible subsequent heat treatment [ 31 ] are of key importance for mechanical, plastic, or operational properties [ 12 , 13 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Post-Weld Heat Treatment on Microstructure and Hardness of Laser Beam Welded 17-4 PH Stainless Steel

2023

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This article presents the results of research on the development of the technology of laser beam butt welding of 17-4 PH stainless steel sheets and the technology of post-weld heat treatment (PWHT). The developed technology allows for favorable conditions to be obtained and for the appropriate microstructure and hardness to exist in the weld area. Moreover, it enables the fulfillment of a number of specific requirements beyond the possibilities of manual welding and other methods. The tests performed include the analysis of the microstructure with the use of light microscopy (LM) for the materials after welding and PWHT. The applied PWHT showed changes in the microstructure and mechanical properties. In all weld areas the martensitic microstructure was observed. The homogeneity of the microstructure in the area of the welded joint after PWTH was revealed. In the as-welded condition and after the PWHT with aging at 481 °C, the hardness was 440 HV5, but after aging at 621 °C, it decreased to 330–340 HV5.

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Section: Introductionmentioning

confidence: 99%

Effect of Post-Weld Heat Treatment on Microstructure and Hardness of Laser Beam Welded 17-4 PH Stainless Steel

2023

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“…This technique also offers a potential to weld stainless steels [23]. Additionally, other low heat input processes such as cold metal transfer (CMT) arc welding method, gas tungsten arc welding (GTAW) or power beam welding processes such as laser beam welding may also be employed in joining these steels [15, 24–44]. As a result, a vast amount of studies have been carried on friction stir welding of steels including stainless steels in the last 3 decades [23, 45–51].…”

Section: Introductionmentioning

confidence: 99%

A study on microstructure and mechanical performance of gas metal arc welded AISI 304 L joints

Ezer

Çam

2022

Materialwissenschaft Werkst

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Arc welding is a widely applied process in the fabrication of stainless steel structures. Various difficulties may arise in joining of these steels, particularly if high heat input is used. The main aim of this study is to evaluate the influence of heat input on microstructure of the joint region and thus on the mechanical behavior of gas metal arc welded AISI 304 L austenitic plates. To this end, AISI 304 L plates with a thickness of 5 mm were butt‐welded by employing two different heat input values. Detailed microstructural and mechanical characterization were carried out. In addition, the influence of heat input on the microstructure and joint performance values was also determined. The higher heat input resulted in a complete recrystallization at the heat affected zone whereas the base metal microstructure was maintained in the lower heat input joint. Both joints displayed strength matching within the weld region, thus exhibited slightly higher tensile strength than that of the base plate (102 %).

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“…Crack accumulation was significantly reduced, resulting in an increase in fatigue life: approximately twice as long as untreated samples. Paper [9] describes the results of uniaxial tension and fatigue tests with controlled stress on stainless steel 2205 of 4 mm thickness. The microstructural characteristics of the compounds were investigated by optical microscopy and electron backscatter diffraction.…”

Section: Introductionmentioning

confidence: 99%

Laser heat treatment effect on fatigue of hinged cantilever beams

Alisin

2023

E3S Web of Conf.

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The paper considers the effect of laser hardening treatment of steels on the fatigue strength of materials. The statement of efficiency of laser processing for formation of hard surface layer of processed surface which protects from wear is substantiated in relation to a hinge design in agricultural machines placed on a cantilever fastened beam which is a hinge axis. The phenomenon of reduction of fatigue characteristics of structural steels after laser treatment is investigated. Influence of fatigue loading on beam durability is analyzed. On the basis of experimental data analysis, the conclusion is formulated that the surface defects in the form of wells which are formed under the influence of laser pulse play an important role during the pulse laser treatment. Particular attention is paid to the role of residual stresses generated by the thermal effects of the laser. On the basis of this research, it is recommended that laser hardening treatment should be carried out, the pulse energy of which does not lead to surface melting.

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Effect of laser beam welding on microstructure, tensile strength and fatigue behaviour of duplex stainless steel 2205

Cited by 32 publications

References 24 publications

Effect of Post-Weld Heat Treatment on Microstructure and Hardness of Laser Beam Welded 17-4 PH Stainless Steel

Effect of Post-Weld Heat Treatment on Microstructure and Hardness of Laser Beam Welded 17-4 PH Stainless Steel

A study on microstructure and mechanical performance of gas metal arc welded AISI 304 L joints

Laser heat treatment effect on fatigue of hinged cantilever beams

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