Modern martensitic steels for power industry

• Autorzy: Łomozik M. , Zeman M. , Brózda J.
• Języki publikacji: EN

Abstrakty

EN

The article presents general characteristics of heat-resisting and creep-resisting steels intended for operation at increased temperature and having martensitic microstructure i.e. X10CrWMoVNb9-2 (T/P92), X11CrMoWVNb9-1-1 (E911) and X12CrCoWVNb12-2-2 (VM12- SHC). The weldability of the aforesaid steels is discussed on the basis of CCT diagrams of austenite transformation in welding conditions and the results of simulation tests aimed at determining the resistance of the steels to brittle and annealing cracking. The paper also contains information on test results related to mechanical (strength and plastic) properties of joints welded with various methods. The description of each of the steels under analysis has been supplemented with technological recommendations on welding and heat treatment of joints. The article is addressed to researchers who are interested in problems of heat- and high-temperature creep resisting constructional steels. Furthermore, the article is intended for designers, technologists and welding engineers engaged in constructional jobs in power industry.

Słowa kluczowe

EN

structural steels; power industry; welding; welded joint; weldability of steels

PL

stal konstrukcyjna; energetyka; spawanie; spawalność stali

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2012
• Tom: Vol. 12, no. 1
• Strony: 49--59
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Łomozik M.

• Institute of Welding, Testing of Materials Weldability and Welded Constructions Department, Błogosławionego Czesława 16-18, 44-100 Gliwice, Poland

autor

Zeman M.

• Institute of Welding, Testing of Materials Weldability and Welded Constructions Department, Błogosławionego Czesława 16-18, 44-100 Gliwice, Poland

autor

Brózda J.

• Institute of Welding, Testing of Materials Weldability and Welded Constructions Department, Błogosławionego Czesława 16-18, 44-100 Gliwice, Poland

Bibliografia

• [1] R. Viswanathan, W.T. Bakker, Materials for boilers in ultra supercritical power plants, in: Proceedings of the International Joint Power Generation Conference, Miami Beach, Florida, 2000.
• [2] J. Brozda, New-generation high-temperature creep resisting steels, their weldability and properties of welded joints. Part 1: Application objective of new-generation high-temperature creep resisting steels, their characteristics and resultant advantages, Bulletin of Instytut Spawalnictwa 48 (1) (2004) 41–49.
• [3] J. Brozda, J.G. Czaja, Creep-resisting steel T92/P92, welding of steel and properties of welded joints, in: Proceedings of the 11th Conference on Materials Testing for Power Plants and Power Industry, Zakopane, 2002.
• [4] J. Brozda, M. Zeman, J. Pasternak, The first supercritical power unit in Poland, Weldability evaluation of new martensitic chromium steels with tungsten additions and properties of welded joints, in: Proceedings of the 7th Liege Conference, European Commission, University de Liege, vol. 21, part III, 2002, pp. 1711–1720.
• [5] A.W. Marshall, Z. Zhang, G.B. Holloway, Welding consumables for P92 and T23 creep resisting steels. http://www.metrode.com/docs/news/t23.pdf
• [6] D. Richardot, J.C. Vaillant, A. Arbab, W. Bendick, The T92/P92book, Information materials of Vallourec & Mannesmann Tubes, 2000.
• [7] T92-P92 Vallourec Experience, Information Materials of Vallourec Industries, Power Generation Division, 1997.
• [8] Wissenswertes fur den Schweisser, Bohler Welding Catalogue, 2001.
• [9] J. Brozda, New-generation high-temperature creep resisting steels, their weldability and properties of welded joints. Part 4: Steel E911, Bulletin of Instytut Spawalnictwa 48 (4) (2004) 49–54.
• [10] B. Hand, H. Heuser, Schweisstechnische Verarbeitung der neuen Kraftwerksstahle P92 und VM12-SHC, in: Proceedings of the ‘‘Powerwelding’’ Conference, Ustron, 2010.
• [11] H. Heuser, C. Jochum, Schweien neuartiger warmfester CrMo-legierter Stahle fur konventionelle Kraftwerke, Information materials of Thyssen Welding, 2000.
• [12] E911-Vallourec Experience, Information Materials of Vallourec Industries, Power Generation Division, 1997.
• [13] J. Orr, L. Buchman, K. Everson, The commercial development and evaluation of E911, a strong CrMoNbVWN steel for boiler tubes and headers, in: Proceedings of the ‘‘Advanced heat resistant steels for power generation’’ Conference, San Sebastian, Spain, 1998.