Degradation of welded joint made of T91 steel with different additional materials

• Autorzy: Wojsyk Kwiryn , Klimaszewska Klaudia , Golański Grzegorz

Identyfikatory

DOI

10.26628/wtr.v91i7.1010

Warianty tytułu

PL

Degradacja złącza stali T91 spawanego różnymi materiałami dodatkowymi

• Języki publikacji: EN

Abstrakty

EN

The aim of the research was to analyse the processes of degradation observed in a similar welded joint of T91 steel. The analysis was performed for welded joints after long-term annealing for up to 8000 hours at the temperature of 600 °C. Microstructural analysis and hardness testing were performed. The purpose of the tests was to evaluate the effect of annealing time at the temperature of ageing on formation and properties of the decarburized zone in the inter-bead area of the welded joint. The study presents the results of physical examinations of the joint welded using two different filler materials (similar welded joint) after long-term effect of high temperature.

PL

Celem badań była analiza procesów degradacji obserwowanych w złączu spawanym ze stali T91. Analizę wykonano dla połączeń spawanych po długotrwałym wyżarzaniu do 8000 godzin w temperaturze 600°C. Przeprowadzono analizę mikrostrukturalną i badania twardości. Celem badań była ocena wpływu czasu wyżarzania w temperaturze starzenia na powstawanie i właściwości strefy odwęglonej w obszarze międzyściegowym złącza spawanego.

Słowa kluczowe

EN

low alloy material; filler material; heterogeneous joint; ageing; T91 steel

PL

materiał niskostopowy; materiał wypełniający; złącze jednorodne; starzenie; stal T91

• Wydawca: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
• Czasopismo: Welding Technology Review
• Rocznik: 2019
• Tom: R. 91, nr 7
• Strony: 55--60
• Opis fizyczny: Bibliogr. 12 poz., il., tab.

Twórcy

autor

Wojsyk Kwiryn

• Czestochowa University of Technology, Poland

autor

Klimaszewska Klaudia

• Czestochowa University of Technology, Poland

autor

Golański Grzegorz

• Czestochowa University of Technology, Poland

Bibliografia

• [1] Sorentino S., Welding technologies for ultra-supercritical power plant materials, Materials for Ultra-Supercritical and Advanced Ultra-Supercritical Power Plants, Woodhead Publishing, 2017, 274-316.
• [2] Zieliński A., Dobrzański J., Purzyńska H., Sikora R., Dziuba-Kałuża M., Kania Z., Evaluation of creep strength of heterogeneous welded joint in HR6W alloy and Sanicro 25 steel, Archives of Metallurgy and Materials, 2017, Vol. 62(4), 2057-2064.
• [3] Łomozik M., Zeman M., Jachym R., Cracking of welded joints made of steel X10CrMoVNb9-1 (T91) – case study, Metallic Materials, 2012, Vol. 50(4), 285-294.
• [4] Zieliński A., Dobrzański J., Purzyńska H., Golański G., Structure and creep resistance of austenitic steel Super 304H, Materials Testing, Properties, Vol. 57(10), 859-865.
• [5] Czupryński A., Kik T., Górka J., Using of low heat input CBT process in joning of high-alloy steel with cooper, Welding Technology Review, 2015, Vol. 87(5), 23-33.
• [6] Wojdat T., Kustroń P., Lange A., Łącka I., Research on the properties braze-welded joints aluminium with steel using filler metals on Al and Zn matrix, Welding Technology Review, 2017, Vol. 89(7), 22-25.
• [7] High Temperature and Creep-resistant Filler Metals – BÖHLER
• [8] Foret R., Zlamal B., Sopouse J., Structural stability of dissimilar weld between two Cr-Mo-V steels, Welding Journal, 2001, Vol. 6(6), 405-411.
• [9] Dawson K.E., Tatlock G.J., Chi K., Barnard P., Changes in precipitate distributions and the microstructural evolution of P24/P91 dissimilar metal welds during PWHT, Metallurgical and Materials Transactions A, 2013, Vol. 44(11), 5065-5080.
• [10] Sudha C., Paul V.T., Terrance A.L.E., Saroja S., Vijayalakshmi M., Microstructure and microchemistry of hard zone in dissimilar weldments of Cr-Mo steels, Welding Research, 2006, Vol. 6(85), 71-80.
• [11] Sudha C., Terrance A.L.E., Albert S.K., Vijayalakshmi M., Systematic study of formation of soft and hard zones in the dissimilar weldments of Cr-Mo steels, Journal of Nuclear Materials, 2002, Vol. 302(2-3), 193-205.
• [12] Tasak E., Ziewiec A., Brzeziak A., The problems appearing during the reparation of welds in dissimilar steels, Archives of Foundry, 2006, Vol. 6(21/2), 221-227.