New generation of protective coatings intended for the power industry

Formanek, B.; Szymański, K.; Szczucka-Lasota, Bożena; Włodarczyk, Anna

doi:10.1016/j.jmatprotec.2005.02.098

Cited by 33 publications

(25 citation statements)

References 4 publications

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“…It has recently been invented low alloy steel welding (only for MIG/MAG processes) with micro-jet cooling [6][7][8][9]. Laser welding and also micro-jet cooling after MIG/MAG give chance to obtain weld metal deposit with very high amount of acicular ferrite (AF) in weld metal deposit (WMD) that corresponds with much higher impact toughness of weld [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Impact Toughness of Steel WMD After TIG Welding

Węgrzyn¹,

Piwnik²,

Stanik³

et al. 2017

Archives of Metallurgy and Materials

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The material selected for this investigation was low alloy weld metal deposit after TIG welding with various amount of oxygen in weld metal deposit (WMD). After TIG process it is difficult to get proper amount of oxygen in WMD on the level much lower than 350 ppm. The highest impact toughness of low alloy WMD corresponds with the amount of oxygen in WMD above 350 ppm. In the paper focuses on low alloy steel after innovate welding method with micro-jet cooling that could be treated as a chance on rising amount of oxygen in weld. Weld metal deposit (WMD) was carried out for TIG welding with micro-jet cooling with various amount of oxygen in WMD. In that paper various gas mixtures (gas mixtures Ar-O 2 and Ar-CO 2 ) were tested for micro-jet cooling after TIG welding. An important role in the interpretation of the results can give methods of artificial intelligence.

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Section: Introductionmentioning

confidence: 99%

Impact Toughness of Steel WMD After TIG Welding

Węgrzyn¹,

Piwnik²,

Stanik³

et al. 2017

Archives of Metallurgy and Materials

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“…Safety and durability of vehicles largely depend on the fatigue strength of the framework that welded the joints within [8][9][10][11]. There are still tested new techniques and materials used for car body frames [4][5][6][7][8][9][10]. In the last 5 years, important publications were presented about welding with micro-jet cooling [3][4]12] that could also be used in car body repairs.…”

Section: Introductionmentioning

confidence: 99%

“…There are still tested new techniques and materials used for car body frames [4][5][6][7][8][9][10]. In the last 5 years, important publications were presented about welding with micro-jet cooling [3][4]12] that could also be used in car body repairs. In the frame of truck vehicles in addition to major impulse forces during exploitation, they are stresses much smaller but very often repeated.…”

Section: Introductionmentioning

confidence: 99%

Electrodes With Various Amount of Nickel for Truck Frame Repairs

Miros¹,

Majewski²,

Piwnik³

et al. 2017

Transport Problems

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Summary. The goal of this paper is to analyze the exploitation and safety conditions of weld steel structure of car body truck frames after welding repairs made by covered electrodes. The main role of conditions in connected with materials, alloy elements in steel and filer materials, welding technology, state of stress and temperature. Because of that, good selection of steel and choice of welding method for proper steel structure repairs are very important. For responsible steel, structures like truck frames and low alloy steel are used, very often with small amounts of carbon and some amounts of alloy elements such as Ni and Mo in low alloy steel and their welds. To study the frame's flexibility and resistance, welded joints have been analyzed. Samples have been welded by steel electrodes with various amounts of Ni. ELEKTRODY OTULONE DO NAPRAW RAM POJAZDÓW CIĘŻAROWYCHStreszczenie. Celem artykułu jest analiza właściwości eksploatacyjnych oraz bezpieczeństwa naprawianych ram pojazdów ciężarowych z użyciem spawania. Ważną rolę odgrywają połączenia materiałów, pierwiastki stopowe, materiały dodatkowe, technologia spawania, stan naprężeń oraz temperatura. Bardzo istotne są odpowiedni dobór stali oraz metody spawalniczej. Na odpowiedzialne konstrukcje stalowe, jak np. ramy pojazdów ciężarowych, jest używana niskostopowa stal, często z niską zawartością węgla oraz dodatkiem pierwiastków stopowych, takich jak Ni oraz Mo. Do oceny elastyczności oraz wytrzymałości połączeń spawanych w ramach pojazdów ciężarowych, analizowano właściwości połączeń wykonanych elektrodami o różnej zawartości Ni. 22M.

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“…Especially micro-jet cooling after MIG welding ( Fig. 1) give chance to obtain weld metal deposit with very high amount of acicular ferrite (AF) in weld metal deposit (WMD) that corresponds with much higher impact toughness of weld [4][5][6]. Because of precise and selective micro-jet cooling it is possible to get even higher amount of acicular ferrite than after laser welding process [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Generally amount of AF is as the most beneficial structure in low alloy steel WMD that directly corresponds with with low-nitrogen and lowoxygen processes (50 ppm of N, 350 ppm of O). Having the most optimal oxide and nitride inclusion parameters in WMD it is only possible to get maximal 55% of AF in weld, but no more [2,5]. In TIG welding, the acicular ferrite content is observed at the maximum of 48%.…”

Section: Introductionmentioning

confidence: 99%

The Use of Compressed Air for Micro-Jet Cooling After MIG Welding

Hadryś

Węgrzyn

Piwnik

et al. 2016

Archives of Metallurgy and Materials

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The material selected for this investigation was low alloy steel weld metal deposit (WMD) after MIG welding with micro-jet cooling. The present investigation was aimed as the following tasks: obtained WMD with various amount of acicular ferrite and further analyze impact toughness of WMD in terms of acicular ferrite amount in it. Weld metal deposit (WMD) was first time carried out for MIG welding with micro-jet cooling of compressed air and gas mixture of argon and air. Until that moment only argon, helium and nitrogen were tested as micro-jet gases for MIG/MAG processes. An important role in the interpretation of the results can give methods of artificial intelligence.

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New generation of protective coatings intended for the power industry

Cited by 33 publications

References 4 publications

Impact Toughness of Steel WMD After TIG Welding

Impact Toughness of Steel WMD After TIG Welding

Electrodes With Various Amount of Nickel for Truck Frame Repairs

The Use of Compressed Air for Micro-Jet Cooling After MIG Welding

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