The influence of manual metal arc multiple repair welding of long operated waterwall on the structure and hardness of the heat affected zone of welded joints

• Autorzy: Pikuła J. , Łomozik M. , Pfeifer T.

Identyfikatory

DOI

10.1515/amm-2017-0049

• Języki publikacji: EN

Abstrakty

EN

Welded installations failures of power plants, which are often result from a high degree of wear, requires suitable repairs. In the case of cracks formed in the weld bead of waterwall, weld bead is removed and new welded joint is prepared. However, it is associated with consecutive thermal cycles, which affect properties of heat affected zone of welded joint. This study presents the influence of multiple manual metal arc welding associated with repair activities of long operated waterwall of boiler steel on properties of repair welded joints. The work contains the results of macro and microscopic metallographic examination as well as the results of hardness measurements.

Słowa kluczowe

EN

repair welding; waterwall; manual metal arc welding; power engineering; HAZ

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 1
• Strony: 327--333
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Pikuła J.

• Institute of Welding in Gliwice, 16-18 Błogosławionego Czesława Str., 44-100 Gliwice, Poland

autor

Łomozik M.

• Institute of Welding in Gliwice, 16-18 Błogosławionego Czesława Str., 44-100 Gliwice, Poland

autor

Pfeifer T.

• Institute of Welding in Gliwice, 16-18 Błogosławionego Czesława Str., 44-100 Gliwice, Poland

Bibliografia

• [1] M. Łomozik, Morphology and Thoughness of Heat Affected Zone Regions of Steel Welded Joints in the Aspect of Temper Bead Application, 2007 The AGH University of Science and Technology Press, Kraków.
• [2] J. Dobrzański, Materials Science Interpretation of the Life of Steels for Power Plants, Open Access Library 3 (2011).
• [3] A. Hernas, J. Dobrzański, Lifetime and Damage of Boiler’s and Turbine’s Components, 2003 Silesian University of Technology Press, Gliwice.
• [4] J. Adamiec, High Temperature Corrosion of Power Boiler Components Cladded with Nickel Alloys, Materials Characterization 60 (10), 1093-1099 (2009).
• [5] P. Biłous, T. Łagoda, Structural notch effect in steel welded joints, Materials & Design 3 (10), 4562-4564 (2009).
• [6] G.K. Ahiale, Y-J. Oh, Microstructure and fatigue performance of butt-welded joints in advanced high-strength steels, Materials Science and Engineering A 597, 342-348 (2014).
• [7] B. Glinkowski, E. Drygalski, T. Szczęsny, Technology of boiler works, 1968 WNT, Warsaw.
• [8] А.D. Burgаnоw, D.М. Lеnin, B.G. Bаbich, Repair of gas-tight steam boilers, 1985 Energoatomisdat, Moscow.
• [9] J. Słania, P. Urbańczyk, Workmanship Technique and Quality Control Plan for the Steam Boiler Superheater acc. to EN 12952-5, Welding Technology Review 5, 29-41 (2012).
• [10] EN ISO 2553:2014-03 Welding and allied processes - Symbolic representation on drawings - Welded joints.
• [11] EN ISO 6507-1:2007 Metallic materials - Vickers hardness test - Part 1: Test method.
• [12] J.H. Kiefer, Bead Tempering Effects on FCAW Heat-Affected Zone Hardness, Welding Journal Supplement 74 (11), 363-367 (1995).
• [13] M. Toyoda, F. Minami, Y. Yamaguchi, K. Amano, F. Kawabata, Tempering Effect on HAZ Toughness of Multi-layered Welds, IIW Doc X-1193-89.
• [14] M. Rozmus-Górnikowska, M. Blicharski, J. Kusiński, L. Kusiński, M. Marszycki, Influence of Boiler Pipe Cladding Techniques on their Microstructure and Properties, Archives of Metallurgy and Materials 58 (4), 1093-1096 (2013).
• [15] E. Tasak, A. Ziewiec, K. Ziewiec, Problems of welding and repairing of dissimilar welds, Archives of Foundry Engineering 6 (21), 221-227 (2006).
• [16] EN ISO 15614-1:2008 - Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys.
• [17] ISO/TR 15608:2013 - Welding - Guidelines for a metallic materials grouping system.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).