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Sepehr Poor Morad Kaleybar Hami Molla Safari Zahra Sadat Seyed Raoofi Yazdan Shajari Hamid Bakhtiari


Nimonic 75 and Inconel 600 alloys are the Nickel-based superalloys which are used in manufacturing gas turbine components. In the current research, a superalloy Ni-based Nimonic sheet and Inconel 600 were used, joint by resistant spot welded (RSW) machine at currents of 2, 4, and 6 kA, pressure of 5 and 7 bar, and times of 0.6, 0.9 and 1.2. Non- destructive inception methods and light and scanning electron method (SEM) and light optic microscope (LOM) were used to evaluate joints' quality. Shear and micro-hardness test was used to check the mechanical properties of the joint. The findings indicate that the most appropriate welding connection of inhomogeneous points at the current of 4 kA was the holding time 0.9 second and electrode force 7bar. The analysis of microstructure consisted of 3 welding zones which are affected by heat and the base metal. The warm corrosion scanning microscope test results at 600 °C and 800 hours confirmed that the existence of a chromium oxide layer on the surface of the superalloy, which has the main role in protecting the piece in the output temperature.

Article Details


Resistance spot welding, Ni-based superalloy, Inconel 600, Nimonic 75, Hot corrosion

[1] A. Kazemi, S. Yang. Atomistic Study of the Effect of Magnesium Dopants on the Strength of Nanocrystalline Aluminum. JOM. 71 (2019) 1209-14.
[2] A. Rostamijavanani. Dynamic Buckling of Cylindrical Composite Panels Under Axial Compressions and Lateral External Pressures. Journal of Failure Analysis and Prevention. (2020) 1-10.
[3] A. Rostamijavanani, M. Ebrahimi, S. Jahedi. Thermal Post-buckling Analysis of Laminated Composite Plates Embedded with Shape Memory Alloy Fibers Using Semi-analytical Finite Strip Method. Journal of Failure Analysis and Prevention. (2020) 1-12.
[4] A. Kazemi. Atomistic Study of the Effect of Magnesium Dopants on Nancrystalline Aluminium. 2019.
[5] A. Kondori, M. Esmaeilirad, A. Baskin, B. Song, J. Wei, W. Chen, et al. Identifying catalytic active sites of trimolybdenum phosphide (Mo3P) for electrochemical hydrogen evolution. Advanced Energy Materials. 9 (2019) 1900516.
[6] M. Okazaki. High-temperature strength of Ni-base superalloy coatings. Science and Technology of Advanced Materials. 2 (2001) 357-66.
[7] A. Luna Ramírez, J. Porcayo-Calderon, Z. Mazur, V. Salinas-Bravo, L. Martinez-Gomez. Microstructural changes during high temperature service of a cobalt-based superalloy first stage nozzle. Advances in Materials Science and Engineering. 2016 (2016).
[8] D. Dye, O. Hunziker, R. Reed. Numerical analysis of the weldability of superalloys. Acta Materialia. 49 (2001) 683-97.
[9] J. Dupont, S. Banovic, A. Marder. Microstructural evolution and weldability of dissimilar welds between a super austenitic stainless steel and nickel-based alloys. Welding Journal. 82 (2003) 125.
[10] I. Mrkvica, M. Janoš, P. Sysel. Contribution to milling of materials on Ni base. Applied Mechanics and Materials. Trans Tech Publ2012. pp. 2056-9.
[11] Z.-x. SHI, J.-r. LI, S.-z. LIU, X.-g. WANG, X.-d. YUE. Effect of Ru on stress rupture properties of nickel-based single crystal superalloy at high temperature. Transactions of Nonferrous Metals Society of China. 22 (2012) 2106-11.
[12] A. Volek, R. Singer, R. Buergel, J. Grossmann, Y. Wang. Influence of topologically closed packed phase formation on creep rupture life of directionally solidified nickel-base superalloys. Metallurgical and Materials Transactions A. 37 (2006) 405-10.
[13] S. Zhang, D. Zhao. Aerospace materials handbook. CrC Press2016.
[14] M. Pouranvari, H. Asgari, S. Mosavizadch, P. Marashi, M. Goodarzi. Effect of weld nugget size on overload failure mode of resistance spot welds. Science and Technology of Welding and Joining. 12 (2007) 217-25.
[15] J.C. Lippold, S.D. Kiser, J.N. DuPont. Welding metallurgy and weldability of nickel-base alloys. John Wiley & Sons2011.
[16] L.M. Gammon, R.D. Briggs, J.M. Packard, K.W. Batson, R. Boyer, C.W. Domby. Metallography and microstructures of titanium and its alloys. ASM handbook. 9 (2004) 899-917.
[17] A. Standard. Standard test methods for elevated temperature tension tests of metallic materials. ASTM International, E21-09. (2009).
[18] Z. Han, J. Orozco, J. Indacochea, C. Chen. Resistance spot welding: a heat transfer study. Welding journal. 68 (1989) 363s-71s.
[19] J. Friedel. Internal stresses and fatigue in metals. Ed. GM Raßweiler and WJ Grube, Amsterdam, 1959.
[20] H.R.R. Ashtiani, R. Zarandooz. Microstructural and mechanical properties of resistance spot weld of Inconel 625 supper alloy. The International Journal of Advanced Manufacturing Technology. 84 (2016) 607-19.
[21] P. Wei, T. Wu. Effects of electrical current on transport processes in resistance spot welding. Science and Technology of Welding and Joining. 15 (2010) 448-56.
[22] O. Ojo, N. Richards, M. Chaturvedi. Contribution of constitutional liquation of gamma prime precipitate to weld HAZ cracking of cast Inconel 738 superalloy. Scripta Materialia. 50 (2004) 641-6.
[23] M. Razmpoosh, M. Shamanian, M. Esmailzadeh. The microstructural evolution and mechanical properties of resistance spot welded Fe–31Mn–3Al–3Si TWIP steel. Materials & Design. 67 (2015) 571-6.
[24] D.W. Tanner. Life assessment of welded INCONEL 718 at high temperature. University of Nottingham2009.
[25] E. Francis, B. Grant, J.Q. Da Fonseca, P. Phillips, M. Mills, M. Daymond, et al. High-temperature deformation mechanisms in a polycrystalline nickel-base superalloy studied by neutron diffraction and electron microscopy. Acta materialia. 74 (2014) 18-29.
[26] J.G.R. Sereni. Reference module in materials science and materials engineering. (2016).
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How to Cite

Poor Morad Kaleybar, S. ., Molla Safari, H. ., Seyed Raoofi, Z. S., Shajari, Y. ., & Bakhtiari, H. (2021). Microstructure Investigation, Hot Tensile and Hot Corrosion of IN600 to Nimonic 75 heterogeneous Connection in Spot Welding. Mapta Journal of Mechanical and Industrial Engineering (MJMIE), 5(1), 1-10.