Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
Purpose: This paper aims to assess a separate influence of heat input and base metal grain size on microstructural evolution in the weld adjacent zone of bainitic steels with 1.5…2.0% Cr, welded or overlayed with consumables with 9% Cr after post-weld heat treatment. Design/methodology/approach: Analysis of the width of decarburised layer on microphotographs of welded or overlayed specimens after tempering at 750°C. Specimens were made by using different welding approaches: single-pass welding, multi-pass welding and overlaying. Findings: It is shown that with an increase of the heat input energy, the width of the resulting decarbonised layer decreases linearly; the increase of the base metal grain size leads to a decrease in the layer width after tempering at 750°C. The microhardness testing showed the average hardness in the decarburised layer of 15Kh2M2FBS steel was 161 HV0.1 (minimum – 154 HV0.1), while the average hardness in the rest of the heat-affected zone was 192 HV0.1. Research limitations/implications: Future research may include comparing the creep rupture strength of the weldments made with different welding parameters or base metal grain size to assess the influence of these factors on creep rupture strength. Practical implications: Results permit to achieve minimisation of the rate of carbon diffusion in the weld-adjacent area of the heat-affected zone by means of variation of welded parameters and base metal grain size. Originality/value: An influence of high-diffusivity paths (grain boundaries) on carbon diffusion in the heat-affected zone of dissimilar weldments was confirmed experimentally; the correlation between base metal grain size/welding parameters and the rate of the diffusion during high temperature exposure was found.
Wydawca
Rocznik
Tom
Strony
14--26
Opis fizyczny
Bibliogr. 33 poz., rys., tab., wykr.
Twórcy
autor
- E.O. Paton Electric Welding Institute NASU, 11 Malevich St., Kiev 03680, Ukraine
autor
- E.O. Paton Electric Welding Institute NASU, 11 Malevich St., Kiev 03680, Ukraine
Bibliografia
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- [2] P. Mayr, C. Schlacher, J.A. Siefert, J.D. Parker, Microstructural features, mechanical properties and high temperature failures of ferritic to ferritic dissimilar welds, International Materials Reviews 64/1 (2019) 1-26. DOI: https://doi.org/10.1080/09506608.2017.1410943
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- [5] Y. Zhao, J. Gong, X. Wang, W. Gao, Q. Li, Carbon diffusion in dissimilar joints between P91 and 12Cr1MoV steels welded by different consumables at high temperature, Materials at High Temperatures 32/6 (2015) 557-565. DOI: https://doi.org/10.1179/1878641315Y.0000000002
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- [7] K. Laha, S. Latha, K. Bhanu Sankara Rao, S.L. Mannan, D.H. Sastry, Comparison of creep behaviour of 2.25Cr–1Mo/9Cr–1Mo dissimilar weld joint with its base and weld metals, Materials Science and Technology 17/10 (2001) 1265-1272. DOI: https://doi.org/10.1179/026708301101509188
- [8] W.K. Wang, J.X. Zhang, L.J. Zhang, Y. Liu, Q.B. Zhang, Microstructure and local mechanical properties of a dissimilar metal welded joint with buttering layer in steam turbine rotor, Materials Science and Engineering: A 747 (2019) 244-254. DOI: https://doi.org/10.1016/j.msea.2018.12.018
- [9] A. Varma, R.K. Yadavalli, Failure analysis of a reheater tube dissimilar metal weld failure in a 500 MW power plant, Engineering Failure Analysis 118 (2020) 104851. DOI: https://doi.org/10.1016/j.engfailanal.2020.104851
- [10] Q. Wu, Q. Xua, Y. Jianga, J. Gonga, Effect of carbon migration on mechanical properties of dissimilar weld joint, Engineering Failure Analysis 117 (2020) 104935. DOI: https://doi.org/10.1016/j.engfailanal.2020.104935
- [11] Q. Wu, F. Lu, H. Cui, X. Liu, P. Wang, Y. Gao, Soft zone formation by carbon migration and its effect on the high-cycle fatigue in 9 % Cr–CrMoV dissimilar welded joint, Materials Letters 141 (2015) 242-244. DOI: https://doi.org/10.1016/j.matlet.2014.08.158
- [12] W.-Ch. Zhang, M.-L. Zhu, K. Wang, F.-Zh. Xuan, Failure mechanisms and design of dissimilar welds of 9 %Cr and CrMoV steels up to very high cycle fatigue regime, International Journal of Fatigue 113 (2018) 367-376. DOI: https://doi.org/10.1016/j.ijfatigue.2018.04.032
- [13] J. Yong, Zh. Zuo, G. Jianming, Carbon diffusion and its effect on high temperature creep life of Cr5Mo/A302 dissimilar welded joint, Acta Metallurgica Sinica 51/4 (2015) 393-399. DOI: https://doi.org/10.11900/0412.1961.2014.00435
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- [16] D. Jandová, J. Kasl, V. Kanta, Creep resistance of similar and dissimilar weld joints of P91 steel, Materials at High Temperatures 23/3-4 (2006) 165-170. DOI: https://doi.org/10.1179/mht.2006.010
- [17] A. Kulkarni, D. K. Dwivedi, M. Vasudevan, Study of mechanism, microstructure and mechanical properties of activated ux TIG welded P91 Steel-P22 steel dissimilar metal joint, Materials Science and Engineering: A 731 (2018) 309-323. DOI: https://doi.org/10.1016/j.msea.2018.06.054
- [18] J. Frei, B.T. Alexandrov, M. Rethmeier, Low heat input gas metal arc welding for dissimilar metal weld overlays part III: hydrogen-assisted cracking susceptibility, Welding in the World 63 (2019) 591-598. DOI: https://doi.org/10.1007/s40194-018-0674-7
- [19] J.A. Fenske, I.M. Robertson, R. Ayer, M. Hukle, D. Lillig, B. Newbury, Microstructure and hydrogen-induced failure mechanisms in Fe and Ni alloy weldments, Metallurgical and Materials Transactions A 43 (2012) 3011-3022. DOI: https://doi.org/10.1007/s11661-012-1129-1
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- [22] A. Kumar, S.M. Pandey, C. Pandey, Dissimilar weldments of ferritic/martensitic grade P92 steel and Inconel 617 alloy: Role of groove geometry on mechanical properties and residual stresses, Archives of Civil and Mechanical Engineering 23 (2023) 54. DOI: https://doi.org/10.1007/s43452-022-00592-5
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- [24] G. Dak, C. Pandey, Study on effect of weld groove geometry on mechanical behavior and residual stresses variation in dissimilar welds of P92/SS304L steel for USC boilers, Archives of Civil and Mechanical Engineering 22 (2022) 140. DOI: https://doi.org/10.1007/s43452-022-00468-8
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- [26] M.O. Nimko, Influence of welding parameters on decarburization in heat affected zone of dissimilar weldments after post weld heat treatment, Archives of Materials Science and Engineering 112/1 (2021) 23-31. DOI: https://doi.org/10.5604/01.3001.0015.5929
- [27] L. Strilkova, Z. Kubon, V. Vodarek, Creep failure characteristics in P23/P91 dissimilar welds, Proceedings of the 19th International Metallurgical and Materials Conference “METAL 2010”, Roznov pod Radhostem, Czech Republic, 2010, 65-70.
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- [31] J. Konieczny, Z. Rdzawski, P. Bańbura, B. Preficz, Influence of aging time and temperature on diffusion of alloyed copper, Journal of Achievements in Materials and Manufacturing Engineering 73/1 (2015) 27-35.
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Uwagi
PL
Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-a753a132-586d-44df-a995-db6563529582