Abstract
This research highlights the influence of bonding pressure on the features of diffusion-bonded joints (DBJs) between Ti6Al4V alloy and TiAlNb alloy investigated at 900 °C for 120 minutes in vacuum with variable pressures of 0.5, 1, 2, 3, and 4 MPa. Characterization of the bonded interfaces was conducted using optical microscopy and scanning electron microscopy in backscattered mode. A molecular dynamics (MD) model was developed with the commercial Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) package utilizing second nearest neighbor modified embedded atom method (2NN MEAM) potentials to predict the diffusion mechanism with variable compressive pressures along the TiAlNb|Ti6Al4V joint interface. Microstructural characterization with light microscopy and scanning electron microscopy in back-scattered mode (SEM-BSE) along the TiAlNb|Ti6Al4V DBJs revealed no interfacial intermetallic phase nucleation. Energy dispersive spectroscopy (EDS) maps and line profiles helped to understand composition variation across the interface. The maximum joint tensile strength of ~ 875 MPa, ~ 13.1% elongation, and mass diffusivity on both sides were obtained at 4 MPa processing pressures with a significant tendency of diffusivity improvement in the TiAlNb side.
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References
Kolmogorov VL, Zalazinsky AG (1998) On metal joining and the prediction of the strength of solid-phase joints. J Mater Process Technol 75:157–164
Miriyev A, Barlam D, Shneck R, Stern A, Frage N (2014) Steel to titanium solid state joining displaying superior mechanical properties. J Mater Process Technol 214:2884–2890
Banerjee D, Gogia AK, Nandi TK, Joshi VA (1988) A new ordered orthorhombic phase in a Ti3Al-Nb alloy. Acta Metall 36:871–882
Rieth M (2009) Diffusion weld study for Test Blanket Module fabrication. Fusion Eng Des 84:1602–1605
Ustinov AI, Falchenko IV, Melnychenko TV, Petrushynets LV, Liapina KV, Shishkin AE (2017) Diffusion welding through vacuum-deposited porous interlayers. J Mater Process Technol 247:268–279
Jafarian M, Khodabandeh A, Manafi S (2015) Evaluation of diffusion welding of 6061 aluminum and AZ31 magnesium alloys without using an interlayer. Mater Des 65:160–164
Xu B, Wu XY, Lei JG, Cheng R, Ruan SC, Wang ZL (2015) Laminated fabrication of 3D micro-electrode based on WEDM and thermal diffusion welding. J Mater Process Technol 221:56–65
Aboudi D, Lebaili S, Taouinet M, Zollinger J (2017) Microstructure evolution of diffusion welded 304L/Zircaloy4 with copper interlayer. Mater Des 116:386–394
Azizi A, Alimardan H (2016) Effect of welding temperature and duration on properties of 7075 Al to AZ31B Mg diffusion bonded joint. Trans Nonferrous Metals Soc China 26:85–92
Soltani S, Abdolrahim N, Sepehrband P (2017) Molecular dynamics study of self-diffusion in the core of a screw dislocation in face centered cubic crystals. Scr Mater 133:101–104
Terentyev D, Monnet G, Grigorev P (2013) Transfer of molecular dynamics data to dislocation dynamics to assess dislocation–dislocation loop interaction in iron. Scr Mater 69:578–581
Borodin EN, Mayer AE (2015) Structural model of mechanical twinning and its application for modeling of the severe plastic deformation of copper rods in Taylor impact tests. Int J Plast 74:141–157
Wang B, Urbassek HM (2013) Molecular dynamics study of the a–c phase transition in Fe induced by shear deformation. Acta Mater 61:5979–5987
Zhang Y, Jiang S (2018) Atomistic investigation on diffusion welding between stainless steel and pure Ni based on molecular dynamics simulation. Mater 11:1957
Evteev AV, Levchenko EV Belova I, V Murch GE (2011) Molecular dynamics simulation of diffusion in a (110) B2-NiAl film. Intermetal 19:848–854
Li C, Li D, Tao X, Chen H, Ouyang Y (2014) Molecular dynamics simulation of diffusion bonding of Al–Cu interface. Model Simul Mater Sci Eng 22:065013
Huang K, Sun HL, Huang ZW, Liao MY (2018) Li Y (2018) Microstructure evolution and diffusion mechanism of Nb/TiAl alloy diffusion-bonded joints. Rare Metals. https://doi.org/10.1007/s12598-018-1125-8
Luo M, Liang L, Lang L, Xiao S, Hu W, Deng H (2018) Molecular dynamics simulations of the characteristics of Mo/Ti interfaces. Comput Mater Sci 141:293–301
Jang JW, Kwon J, Lee BJ (2010) Effect of stress on self-diffusion in bcc Fe: an atomistic simulation study. Scr Mater 63:39–42
Liang L, Zhang J, Xu Y, Zhang Y, Wang W, Yang J (2018) A molecular dynamics investigation of the effect of pressure and orientation on the Cu consumption in Cu-Cu3Sn interface under isothermal ageing and its dissipative mechanisms during traction. Preprints: 2018010072 (https://doi.org/10.20944/preprints201801.0072.v1)
Li H, Yang C, Sun L, Li M (2017) Influence of pressure on interfacial microstructure evolution and atomic diffusion in the hot-press bonding of Ti-33Al-3V to TC17. J Alloys Compd 720:131–138
Kato H, Shibata M, Yoshikawa K (1986) Diffusion welding of Ti/Ti and Ti/stainless steel rods under phase transformation in air. Mater Sci Technol 2(4):405–409
Frenkel D, Smit B (2002) Understanding molecular simulation: from algorithms to applications, Academic Press, 1
Plimpton S (1995) Fast parallel algorithms for short-range molecular dynamics. J Comput Phys 117:1–19
Stukowski A (2009) Visualization and analysis of atomistic simulation data with OVITO–the Open Visualization Tool. Model Simul Mater Sci Eng 18(1):015012
Baskes MI (1992) Modified embedded-atom potentials for cubic materials and impurities. Phys Rev B 46:2727
Lee BJ, Baskes MI (2000) Second nearest-neighbor modified embedded-atom-method potential. Phys Rev B 62:8564
Kim YM, Lee BJ, Baskes MI (2006) Modified embedded-atom method interatomic potentials for Ti and Zr. Phys Rev B 74:014101
Lee BJ, Shim JH, Baskes MI (2003) Semiempirical atomic potentials for the fcc metals Cu, Ag, Au, Ni, Pd, Pt, Al, and Pb based on first and second nearest neighbor modified embedded atom method. Phys Rev B 68:144112
Lee BJ, Baskes MI, Kim H, Cho YK (2001) Second nearest-neighbor modified embedded atom method potentials for bcc transition metals. Phys Rev B 64:184102
Kim Y, Kim HK, Jung WS, Lee BJ (2016) Atomistic modeling of the Ti–Al binary system. Comput Mater Sci 119:1–8
Feng C, Peng X, Fu T, Zhao Y, Huang C, Wang Z (2017) Molecular dynamics simulation of nano-indentation on Ti-V multilayered thin films. Physica E: Low Dimen Syst Nanostruct 87:213–219
Shim JH, Ko WS, Kim KH, Lee HS, Lee YS, Suh JY, Cho YW, Lee BJ (2013) Prediction of hydrogen permeability in V–Al and V–Ni alloys. J Membr Sci 430:234–241
Rajamallu K, Niranjan MK, Ameyama K, Dey SR (2017) Phase stability and elastic properties of β Ti–Nb–X (X= Zr, Sn) alloys: an ab initio density functional study. Model Simul Mater Sci Eng 25:085013
Farkas D, Jones C (1996) Interatomic potentials for ternary Nb-Ti-Al alloys. Modelling and Simulation Model Simul Mater Sci Eng 4: 23.
Debski A, Debski R, Gasior W (2014) New features of Entall database: comparison of experimental and model formation enthalpies/Nowe Funkcje Bazy Danych Entall: Porównanie Doświadczalnych I Modelowych Entalpii Tworzenia. Arch Metall Mater 59:1337–1343
Kumar KCH, Wollants P, Delaey L (1994) Thermodynamic calculation of Nb-Ti-V phase diagram. Calphad 18:71–79
Kim YM, Shin YH, Lee BJ (2009) Modified embedded-atom method interatomic potentials for pure Mn and the Fe–Mn system. Acta Mater 57:474–482
Sa I, Lee BJ (2008) Modified embedded-atom method interatomic potentials for the Fe–Nb and Fe–Ti binary systems. Scr Mater 59:595–598
Pederson R, Babushkin O, Skystedt F, Warren R (2003) Use of high temperature X-ray diffractometry to study phase transitions and thermal expansion properties in Ti-6Al-4V. Mater Sci Technol 19(11):1533–1538
Sellers MS, Schultz AJ, Basaran C, Kofke DA (2011) Effect of Cu and Ag solute segregation on β Sn grain boundary diffusivity. J Appl Phys 110:013528
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Kundu, J., Chakraborty, A. & Kundu, S. Bonding pressure effects on characteristics of microstructure, mechanical properties, and mass diffusivity of Ti-6Al-4V and TiAlNb diffusion-bonded joints. Weld World 64, 2129–2143 (2020). https://doi.org/10.1007/s40194-020-00989-x
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DOI: https://doi.org/10.1007/s40194-020-00989-x