Metallurgical analysis of the causes of failure of the hardening furnace conveyor belt

• Autorzy: Merda A. , Klimaszewska K. , Sroka M. , Golański G.

Identyfikatory

DOI

10.5604/01.3001.0013.4608

• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of the tests was to analyze the microstructure and mechanical properties of a section of the hardening furnace conveyor belt serviced at the temperature of 880-920°C in the carburizing atmosphere, in the context of determining the probable causes of its failure. Design/methodology/approach: The scope of performed tests included: chemical composition analysis of the steel and particles, microstructure investigated using optical and scanning electron microscopy, X-ray phase analysis. Findings: The analysis of the chemical composition showed that the examined material was austenitic steel X15CrNiSi25-21 (S310). Performed metallurgical tests showed that after the service the examined steel was characterized by austenitic structure with numerous precipitates of diverse morphology. In the structure the sigma phase particles and probably the M23C6 carbides precipitates were observed. The continuous grid of precipitates on the boundaries of grains (mainly the sigma phase) and the influence of the cyclic changing heat loads (or thermo-mechanical loads) were the main causes of failure of the analysed detail. Research limitations/implications: The aim of the work was to determine the probable causes of damage of the material used for a conveyor belt of a hardening furnace. Practical implications: The results of investigation and analysis of the metallographic of het-resisting austenitic steel X15CrNiSi25-21 (S310) after service at the temperature of 880-920°C are presented. Originality/value: The paper presents the results of research on the microstructure and mechanical properties of the section of hardening furnace conveyor belt made of creepresisting austenitic steel. The aim of the performed tests was to determine the probable causes of damage of the analysed detail.

Słowa kluczowe

EN

microstructure; X-ray phase analysis; precipitates; failure

PL

mikrostruktura; rentgenowska analiza fazowa; osady; niepowodzenie

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2019
• Tom: Vol. 98, nr 2
• Strony: 68--73
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Merda A.

• Institute of Material Engineering, Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland

autor

Klimaszewska K.

• Institute of Material Engineering, Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland

autor

Sroka M.

• Institute of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland

autor

Golański G.

• Institute of Material Engineering, Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland

Bibliografia

• [1] M. Blicharski, Creep resistant austenitic stainless The belt was made of heat-resisting austenitic steel of the steels, in: A. Hemas, J. Pasternak (Eds.), Materials and technologies used in the construction of boilers with supercritical parameters and operating tempe¬ratures up to 700°C, Gliwice, 2013, 59-78.
• [2] G. Golański, Heat-resistant austenitic steels, WIPiTM Publishing House, Częstochowa, 2017.
• [3] Ch.-Ch. Hsieh, W. Wu, Overview of intermetallic sigma (o) phase precipitation in stainless steels, ISRN Metallurgy 2012 (2012) Article ID 732471, DOI: http://dx.doi.org/10.5402/2012/732471.
• [4] K.H. Lo, C.H. Shek, J.K.L Lai, Recent developments in stainless steels, Materials Science and Engineering R: Reports 65/4-6 (2009) 39-104, DOI: https://doi.org/ 10.1016/j.mser.2009.03.001.
• [5] PN-EN 10095:2002 - Heat resisting steel and nickel alloys.
• [6] L.P. Karjalainen, T. Taulavuori, M. Sellman, A. Kyrolainen, Some strengthening methods for austenitic stainless steels, Materials Technology 79/6 (2008) 404¬412, DOI: https://doi.org/10.1002/srin.200806146.
• [7] G. Golański, C. Kolan, A. Zieliński, K. Klimaszewska, A. Merda, M. Sroka, J. Klosowicz, Microstructure and mechanical properties of HR3C austenitic steel after service, Archives of Materials Science and Engineering 81/2 (2016) 62-67, DOI: https://doi.org/10.5604/01.3001.0009.7100.
• [8] S. Heino, E.M. Knotson-Wedel, B. Karlsson, Precipitation behaviour in heat affected zone of welded superaustenitic stainless steel, Materials Science and Technology 15/1 (1999) 101-108, DOI: https://doi.org/10.1179/026708399773003376.
• [9] D.-Y. Lin, T.-Ch. Chang, G.L. Liu, Effect of Si contents of the growth behavior of o phase in SUS 309L stainless steels, Scripta Materialia 49/9 (2003) 855-860, DOI: https://doi.org/10.1016/S1359-6462(03)00481-0.
• [10] D.J. Li, Y. Gao, J.L. Tan, F.G. Wang, J.S. Zhang, Effect of o phase on the creep properties of Cr25Ni20 stainless steel, Scripta Metallurgica 23/8 (1989) 1319-1321, DOI: https://doi.org/10.1016/0036-9748(89) 90052-5.
• [11] J. Barcik, Mechanism of o-phase precipitation in Cr-Ni austenitic steels, Materials Science and Technology 4/1 (1988) 5-15, DOI: https://doi.org/ 10.1179/mst.l988.4.1.5.
• [12] K. Guan, X. Xu, Z. Wang, Effect of aging at 700°C on precipitation and toughness AISI 321 and AISI 347 austenitic stainless steel welds, Nuclear Engineering and Design 235/23 (2005) 2485-2494, DOI: https://doi.Org/10.1016/j.nucengdes.2005.06.006.
• [13] A.F. Padilha, P.R. Rios, Decomposition of austenite in austenite stainless steel, ISIJ International 42/4 (2002) 325-327, DOI: https://doi.org/10.2355/isij international .42.325.
• [14] G. Golański, A. Zieliński, H. Purzyńska, Precipitation process in creep-resistant austenitic steels, in: W. Borek, T. Tański, Z. Brytan (Eds.), Austenitic stainless steels, IntechOpen, 2017, 93-112, DOI: https://doi.org/10.5772/intechopen.70941.
• [15] M. Pohl, O. Storz, T. Głogowski, Effect of inter¬metallic precipitation on the properties of duplex stainless steel, Materials Characterization 58/1 (2007) 65-71, DOI: https://doi.org/10.1016/j.matchar.2006. 03.015.