Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-29T17:56:07.307Z Has data issue: false hasContentIssue false
  • English
  • Français

Liquid film migration in laser welded joint of Inconel 617

Published online by Cambridge University Press:  28 July 2015

Wenjie Ren ,
Fenggui Lu ,
Renjie Yang ,
Xia Liu  and
Zhuguo Li
Wenjie Ren
Affiliation:
Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
Fenggui Lu
Affiliation:
Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
Renjie Yang
Affiliation:
Department of Welding Technology, Shanghai Turbine Works Company, Shanghai 200240, People's Republic of China
Xia Liu
Affiliation:
Shanghai Turbine Plant of Shanghai Electric Power Generation Equipment Co. Ltd., Shanghai 200240, People's Republic of China
Zhuguo Li*
Affiliation:
Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

Liquid film migration (LFM) in the fiber laser welded Inconel 617 joint was investigated. The results show that the LFM occurs in HAZ of the laser welded Inconel 617 joint. The element of Mo in the migrated region is slightly richer than that in the adjacent matrix. The diffusional coherency strain due to the lattice mismatch between the element of Mo and the matrix atom is the dominant factor contributing to the occurrence of LFM in HAZ of laser welded Inconel 617. The migration of the liquid film is promoted by the thin initial liquid film and the slow cooling rate in large heat input. LFM tends to occur on the grain boundary (GB) with the fine particles and the GB-resolidified particles are formed on the GB with the large particles. Liquation cracking is reduced in the welds with the high heat input and in the solution treatment condition by LFM (1100 °C/1 h).

Keywords

liquid film migrationInconel 617fiber laser weldingliquation cracking
Type
Articles
Information
Journal of Materials Research , Volume 30 , Issue 15 , 14 August 2015 , pp. 2340 - 2347
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Wang, J., Dong, J.X., Zhang, M.C., and Xie, X.S.: Equilibrium-phase precipitation behaviors of typical nickel-base alloys for 700 °C advanced ultra-supercritical boiler tubes. J. Univ. Sci. Technol. B 34(7), 799 (2012).Google Scholar
Mankins, W.L., Hosier, J.C., and Bassford, T.H.: Microstructure and phase stability of INCONEL alloy 617. Metall. Trans. 5, 2579 (1974).Google Scholar
Fink, C. and Zinke, M.: Welding of nickel-based alloy 617 using modified dip arc processes. Weld. World 57, 323 (2013).Google Scholar
Yoon, D.N. and Huppman, W.J.: Chemically driven growth of tungsten grains during sintering in liquid nickel. Acta Mater. 27, 973 (1979).Google Scholar
Idowu, O.A., Ojo, O.A., and Chaturvedi, M.C.: Effect of heat input on heat affected zone cracking in laser welded ATI Allvac 718Plus superalloy. Mater. Sci. Eng., A 454–455, 389 (2007).Google Scholar
Osoba, L.O. and Ojo, O.A.: Influence of laser welding heat input on HAZ cracking in newly developed Haynes 282 superalloy. Mater. Sci. Technol. 8(4), 431 (2012).Google Scholar
Ojo, O.A., Richards, N.L., and Chaturvedi, M.C.: Liquid film migration of constitutionally liquated γ’ in weld heat affected zone (HAZ) of Inconel 738LC superalloy. Scr. Mater. 51, 141 (2004).Google Scholar
Acoff, V.L. and Thompson, R.G.: Characterization of constitutional liquid migration in nickel-base alloy 718. Metall. Mater. Trans. A 27A, 2692 (1996).Google Scholar
Nakkalil, R., Richards, N.L., and Chaturvedi, M.C.: Grain boundary liquid film migration during welding of incoloy 903. Scr. Mater. 26, 1599 (1992).Google Scholar
Shah Hosseini, H., Shamanian, M., and Kermanpur, A.: Characterization of microstructures and mechanical properties of Inconel 617/310 stainless steel dissimilar welds. Mater. Charact. 62, 425 (2011).Google Scholar
Darius, T., Pyuck-Pa, C., Jutta, K., Aleksander, K., Gerhard, I., and Dierka, R.: Microstructural evolution of a Ni-based superalloy (617B) at 700 °C studied by electron microscopy and atom probe tomography. Acta Mater. 60, 1731 (2012).Google Scholar
McPhee, W.A.G., Schaffer, G.B., and Drennan, J.: The effect of iron on liquid film migration and sintering of an Al-Cu-Mg alloy. Acta Mater. 51, 3701 (2003).Google Scholar
Baik, Y.J. and Yoon, D.N.: The coherency strain effect on the direction of chemically induced liquid film migration in Mo-Ni alloy. Mater. Trans. A 18A, 151 (1987).Google Scholar
Kirkaldy, J.S.: Liquid film migration as a broken symmetry due to an unbalanced anisotropy of surface tension. Acta Mater. 46(14), 5127 (1998).Google Scholar
Rabkin, E., Weygand, D., Straumal, B., Semenov, V., Gust, W., and Brechet, Y.: Liquid film migration in a Mo(Ni) bicrystal. Philos. Mag. Lett. 73(4), 187 (1996).Google Scholar
Shin, H.S., Kim, J.S., Yoon, D.Y., and Song, Y.D.: The liquid film migration in a sintered Fe-Cr-c base alloy. Metall. Mater. Trans. A 26A, 1389 (1995).Google Scholar
Barker, S.W. and Purdy, G.R.: On liquid film migration in aluminium–copper alloys. Acta Mater. 46(2), 511 (1998).Google Scholar
Mousavizade, S.M., Malek Ghaini, F., Torkamany, M.J., Sabbaghzadeh, J., and Abdollah-zadeh, A.: Effect of severe plastic deformation on grain boundary liquation of a nickel-base superalloy. Scr. Mater. 60, 244 (2009).Google Scholar
Richards, N.L., Nakkalil, R., and Chaturvedi, M.C.: The influence of electron-beam welding parameters on heat-affected-zone microfissuring in INCOLOY 903. Metall. Mater. Trans. A 25A, 1733 (1994).CrossRefGoogle Scholar
Hong, H.U., Kim, I.S., Choi, B.G., Yoo, Y.S., and Jo, C.Y.: On the role of grain boundary serration in simulated weld heat-affected zone liquation of a wrought nickel-based superalloy. Metall. Mater. Trans. A 43A, 173 (2012).Google Scholar