Temper Bead Welding of S420G2+M Steel in Water Environment

Fydrych, Dariusz; Świerczyńska, Aleksandra; Łabanowski, Jerzy

doi:10.1515/adms-2016-0018

Cited by 40 publications

(18 citation statements)

References 24 publications

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“…Haring regard to the value of S460N steel carbon equivalent, welding conditions favouring the increase of steel tendency to cold cracking and experience [3,4,8,19,24] it should be recognized, that presented results are justified CONCLUSIONS 1. Based on the results of the technological weldability tests of S460N high strength steel it may be stated that CTS welded joints made under water by using covered electrodes (rutile) in wet conditions are characterized by a high susceptibility to cold cracking.…”

Section: Resultsmentioning

confidence: 85%

“…However, the latest investigations show that application of heating induction is possible [17]. Research tests on ultrasonic enhancement the underwater welding processes [18,22] or application of temper bead welding technique [19,24] are also carried out. The minimizing of steel susceptibility to cold cracking is especially important in case of higher strength steels.…”

Section: Introductionmentioning

confidence: 99%

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Cold Cracking of S460N Steel Welded in Water Environment

Tomków

Łabanowski

Fydrych

2018

Polish Maritime Research

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This paper shows results of weldability testing of fine-grained high-strength low-alloy S460N steel welded in water environment by covered electrodes. The tests were carried out by using the CTS test specimens with fillet welds. Four specimens were welded under water and one specimen in air. Welded joints were subjected to non-destructive visual and penetration tests. The accepted joints were then subjected to macroscopic and microscopic inspection and Vickers hardness measurements as well. The experiments showed that S460N steel welded in water environment is characterized by a high susceptibility to cold cracking.

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Section: Resultsmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Cold Cracking of S460N Steel Welded in Water Environment

Tomków

Łabanowski

Fydrych

2018

Polish Maritime Research

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“…Therefore, it is necessary to combine the results for a broader range of materials. Thus, the current work is focused on examining the three carbon steels commonly used in industrial practice: S235 and S355, C45 (popular structural materials) which were compared with classic stainless steel grade X5CrNi18-10 (AISI 304) and with Hardox 500,the low-alloy abrasive-wear resistant steel that is gaining favor [2,[17][18][19][20][21][22]. Therefore, the steel materials investigated in current work are usually used as a reference material in various wear tests [3,15,18,[23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Abrasion Resistance of S235, S355, C45, AISI 304 and Hardox 500 Steels with Usage of Garnet, Corundum and Carborundum Abrasives

Szala¹,

Szafran²,

Macek³

et al. 2019

Adv. Sci. Technol. Res. J.

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The steel presents a wide field of application. The abrasive wear resistance of steel relies mainly on the microstructure, hardness as well as on the abrasive material properties. Moreover, the selection of a abrasion-resistant grade of steel still seems to be a crucial and unsolved problem, especially due to the fact that the actual operating conditions can be affected by the presence of different abrasive materials. The aim of this work was to determine the effect of different abrasive grit materials i.e. garnet, corundum and carborundum on the abrasive wear result of a commonly used in industry practice steels i.e. S235, S355, C45, AISI 304 and Hardox 500. The microstructure of the steel was investigated using light optical microscopy. Moreover, hardness was measured with Vickers hardness tester. Additionally, the size and morphology of the abrasive materials were characterized. The abrasion tests were conducted with the usage of T-07 tribotester (dry sand rubber wheel). The results demonstrate that the hardness and structure of steels and hardness of abrasive grids influenced the wear results. The abrasive wear behavior of steels was dominated by microscratching and microcutting wear mechanisms. The highest mass loss was obtained for garnet, corundum, and carborundum, respectively. The usage of various abrasives results in different abrasion resistance for each tested steel grade. The AISI 304 austenitic stainless steel presents an outstanding abrasive wear resistance while usage of corundum and Hardox 500 while using a garnet as abrasive material. The C45 carbon steel was less resistant than AISI 304 for all three examined abrasives. The lowest resistance to wear in garnet and carborundum was obtained for the S235JR and S355J2 ferritic-perlitic carbon steels and in corundum for Hardox 500 which has tempered martensitic structure.

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“…However, a distinct decrease in maximum hardness of the HAZ (below assumed in the DNV-OS-C401 standard criterion) was revealed in the joints of polymer insulated pipes, It may be expected that in the case of welding elements of a greater thickness, which requires to use multi-pass technique, a drop in maximum hardness of the HAZ, resulting from the phenomenon of tempering, would occur [27].…”

Section: Resultsmentioning

confidence: 98%

Underwater Wet Repair Welding of API 5L X65M Pipeline Steel

Rogalski

Łabanowski

2017

Polish Maritime Research

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This paper presents results of the research of effect of polymer insulation of pipeline made of API 5L X65M steel as well as underwater wet welding parameters on properties of joints made by covered electrodes. Effect of heat input on structure and hardness of joints during repair of underwater pipeline was analyzed. Welding defects like microcracks, micro-lacks of fusion, slag inclusions, as well as HAZ hardness increase over an assumed acceptance criterion for welded joints in pipes without anticorrosion polymer insulation, were identified. A significant effect of polimer insulation on structure and properties of welded joints, was found.

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Temper Bead Welding of S420G2+M Steel in Water Environment

Cited by 40 publications

References 24 publications

Cold Cracking of S460N Steel Welded in Water Environment

Cold Cracking of S460N Steel Welded in Water Environment

Abrasion Resistance of S235, S355, C45, AISI 304 and Hardox 500 Steels with Usage of Garnet, Corundum and Carborundum Abrasives

Underwater Wet Repair Welding of API 5L X65M Pipeline Steel

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