ارزیابی ریزساختار و خواص مکانیکی اتصال غیرمشابه سوپر آلیاژ اینکونل 718 به فولاد زنگ نزن آستنیتی 316

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده مهندسی مواد، واحد نجف آباد، دانشگاه آزاد اسلامی، نجف آباد، ایران

2 دانشکده مهندسی مواد، دانشگاه صنعتی اصفهان، اصفهان، ایران

چکیده

در پژوهش حاضر ریز ساختار و خواص مکانیکی اتصال غیرمشابه سوپر آلیاژ اینکونل 718 به فولاد زنگ نزن آستنیتی 316 با استفاده از روش جوشکاری قوسی تنگستن -گاز با دو فلز پرکننده 718 (ERNiFeCr-2) و 625 (ERNiCrMo-3) مورد بررسی قرار گرفت. پس از جوشکاری، ریزساختار و خواص مکانیکی نواحی مختلف اتصال با استفاده از میکروسکوپ نوری و میکروسکوپ الکترونی روبشی مورد ارزیابی قرار گرفت. ترکیب و رسوبات فصل مشترک با استفاده از آنالیز EDS مشخص شدند. همچنین خواص مکانیکی اتصال با استفاده از آزمایش کشش، ضربه و ریز سختی سنجی بررسی شد. بررسی‌های ریزساختاری نشان داد که ساختار انجمادی فلز پرکننده 718 ریزساختار آستنیتی با شبکه دندریتی همراه با توزیع کاربید و فلز پرکننده 625 نیز ریزساختار آستنیتی با شبکه دندریتی ایجاد کرده است. در آزمایش کشش، فلز پرکننده 718 دارای بیشترین استحکام کششی به میزان 528 مگا پاسکال و شکست تمامی نمونه‌های مورد آزمایش از ناحیه فلز پایه زنگ نزن آستنیتی 316 رخ داد. نتایج آزمایش ضربه نشان داد که بیشترین مقدار انرژی شکست به میزان 50 ژول برای فلز پرکننده 625 است. آزمایش ریز سختی نیز مشخص کرد که فلز پرکننده 718 دارای بیشترین سختی به میزان 214 ویکرز است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Evaluation of Microstructure and Mechanical Properties of Dissimilar Joining of Inconel 718 Superalloy to 316 Austenitic Stainless Steel

نویسندگان [English]

  • pouya basir 1
  • Morteza Shamanian 2
1 Masters،Department of Materials Engineering, Islamic Azad University, Najaf Abad, Isfahan, Iran.
2 Professor, Faculty of Materials Engineering and Metallurgy, Isfahan University of Technology, Isfahan, Iran.
چکیده [English]

In this study, the microstructure and mechanical properties of dissimilar joining of Inconel 718 superalloy to AISI 316 austenitic stainless steel were investigated using the tungsten-gas arc welding method with two filler metals 718 (ERNiFeCr-2) and 625 (ERNiCrMo-3). After welding, the microstructure and mechanical properties of different joint areas were evaluated using an optical microscope and scanning electron microscope. The precipitates in the interface and their chemical composition were determined using energy-dispersive spectroscopy analysis. Also, the mechanical properties of the joint were evaluated using tensile, impact, and microhardness tests. Microstructural investigations showed that the freezing structure of filler metal 718 has an austenitic microstructure with a dendritic network along with carbide distribution and filler metal 625 has also created an austenitic microstructure with a dendritic network. In the tensile test, filler metal 718 has the highest tensile strength of 528 MPa and the failure of all tested samples occurred in the area of the austenitic stainless steel base metal 316. The results of the impact test showed that the maximum amount of fracture energy is 50J for filler metal 625. The micro-hardness test also determined that the 718 filler metal has the highest hardness of 214 Vickers.

کلیدواژه‌ها [English]

  • Inconel 718
  • Dissimilar joint
  • AISI316
  • Filler metal 718
  • Filler metal 625

مراجع

 [1] M.J. Donachie, S.J. Donachie, Superalloys: a technical guide, ASM international, 2002.
[2] G.R. Thellaputta, P.S. Chandra, C. Rao, Machinability of nickel based superalloys: a review, Materials Today: Proceedings, 4(2) (2017) 3712-3721.
[3] H.-T. Lee, W.-H. Hou, Development of fine-grained structure and the mechanical properties of nickel-based Superalloy 718, Materials Science and Engineering: A, 555 (2012) 13-20.
[4] B. Sreenu, R. Sarkar, S.S. Kumar, S. Chatterjee, G.A. Rao, Microstructure and mechanical behaviour of an advanced powder metallurgy nickel base superalloy processed through hot isostatic pressing route for aerospace applications, Materials Science and Engineering: A, 797 (2020) 140254.
[5] M. Ziętala, T. Durejko, M. Polański, I. Kunce, T. Płociński, W. Zieliński, M. Łazińska, W. Stępniowski, T. Czujko, K.J. Kurzydłowski, The microstructure, mechanical properties and corrosion resistance of 316 L stainless steel fabricated using laser engineered net shaping, Materials Science and Engineering: A, 677 (2016) 1-10.
[6] R. Castro, Historical Background to Stainless Steel (Chapter 1), Stainless steels. P. Lacombe, B. Baroux, and G. Beranger (Eds.), les editions de physique, Les Ulis, France, (1993) 1-12.
[7] S. Biabani, A. Saatchi, The Corrosion Of St37 Carbon Steel And 316 Stainless Steel In Molten Zinc Bath, Advanced Processes In Materials, 7(1(24)) (2013) 55-63.
 [8] T. Glover, Application of stainless steels in chemical plant corrosive environments, Anti-Corrosion Methods and Materials, 29 (1982) 11-12.
[9] M. Shakil, M. Ahmad, N. Tariq, B. Hasan, J. Akhter, E. Ahmed, M. Mehmood, M. Choudhry, M. Iqbal, Microstructure and hardness studies of electron beam welded Inconel 625 and stainless steel 304L, Vacuum, 110 (2014) 121-126.
[10] R. Ghasemi, E. Heshmat Dehkordi, M. Shamanian, Investigation of microstructures and mechanical properties of dissimilar welds between Incoloy 825 and 316 stainless steel, Journal of Welding Science and Technology of Iran, 2(1) (2016) 21-31. (in persian)
[11] A. Mortezaei, M. Shamanian, A. Saatchi, Evaluation of microstructure and weldability of dissimilar joining of Inconel 718 superalloy to S310 austenitic stainless steel, New Processes in Materials Engineering, 9(1) (2015) 73-85. (in Persian)
[12] F. Dokme, M.K. Kulekci, U. Esme, Microstructural and mechanical characterization of dissimilar metal welding of Inconel 625 and AISI 316L, Metals, 8(10) (2018) 797.
[13] P. Prabaharan, K.D. Ramkumar, N. Arivazhagan, Characterization of microstructure and mechanical properties of Super Ni 718 alloy and AISI 316L dissimilar weldments, Journal of Materials Research, 29(24) (2014) 3011-3023.
[14] K.G. Kumar, K.D. Ramkumar, N. Arivazhagan, Characterization of metallurgical and mechanical properties on the multi-pass welding of Inconel 625 and AISI 316L, Journal of Mechanical Science and Technology, 29(3) (2015) 1039-1047.
[15] K.D. Ramkumar, S.D. Patel, S.S. Praveen, D.J. Choudhury, P. Prabaharan, N. Arivazhagan, M.A. Xavior, Influence of filler metals and welding techniques on the structure–property relationships of Inconel 718 and AISI 316L dissimilar weldments, Materials & Design (1980-2015), 62 (2014) 175-188.
[16] T. Ramkumar, M. Selvakumar, P. Narayanasamy, A.A. Begam, P. Mathavan, A.A. Raj, Studies on the structural property, mechanical relationships and corrosion behaviour of Inconel 718 and SS 316L dissimilar joints by TIG welding without using activated flux, Journal of Manufacturing Processes, 30 (2017) 290-298.
[17] R.d.S. Silva, R. Demarque, L.M.d. Silva, J.A.d. Castro, Analysis of Dissimilar Welding Joint between Inconel 718 and AISI 316L by GTAW Multipass Process, Soldagem & Inspeção, 27 (2022).
[18] S. Ferretti, G. Valenzano, W. Cugno, International space station external active thermal control system lines manufacturing, in: 57th International Astronautical Congress, 2006, pp. B4. 2.09.
[19] M. Henderson, D. Arrell, R. Larsson, M. Heobel, G. Marchant, Nickel based superalloy welding practices for industrial gas turbine applications, Science and technology of welding and joining, 9(1) (2004) 13-21.
[20] J. Elmer, S. Allen, T. Eagar, Microstructural development during solidification of stainless steel alloys, Metallurgical transactions A, 20(10) (1989) 2117-2131.
 [21] V. Patel, A. Sali, J. Hyder, M. Corliss, D. Hyder, W. Hung, Electron beam welding of inconel 718, Procedia Manufacturing, 48 (2020) 428-435.
 [22] G. Li, J. Huang, Y. Wu, An investigation on microstructure and properties of dissimilar welded Inconel 625 and SUS 304 using high-power CO2 laser, The International Journal of Advanced Manufacturing Technology, 76(5) (2015) 1203-1214.
[23] A. Athiroj, P. Wangyao, F. Hartung, G. Lothongkum, Low heat input welding of nickel superalloy GTD-111 with Inconel 625 filler metal, Materials Testing, 60(1) (2018) 22-30.
[24] T. Artaza, T. Bhujangrao, A. Suárez, F. Veiga, A. Lamikiz, Influence of heat input on the formation of laves phases and hot cracking in plasma arc welding (PAW) additive manufacturing of inconel 718, Metals, 10(6) (2020) 771.
نشریه مهندسی مکانیک امیرکبیر
دوره 54، شماره 12
اسفند 1401
صفحه 2917-2936

فایل ها

هم رسانی

ارجاع به این مقاله

آمار