Microstructural refinement through inoculation of type 7020 Al-Zn-Mg alloy welds and its effect on hot cracking and tensile properties

Journal of Materials Processing Technology

Volumn 142, Issue 1, 2003, Pages 174-181

  Janaki Ram, G D ^a   Mitra, T K ^b   Shankar, V ^c   Sundaresan, S ^d  

^a DRDO   (India)

^b Welding Research Inst   (India)

^c INDIRA GANDHI CENTRE FOR ATOMIC RESEARCH   (India)

^d INDIAN INSTITUTE OF TECHNOLOGY MADRAS   (India)

Author keywords

Aluminium alloy; Grain refinement; Welds

Indexed keywords

ALUMINUM ALLOYS; COMPOSITION; CRACK INITIATION; MICROSTRUCTURE; TENSILE STRENGTH;

GRAIN REFINEMENT;

WELDING;

EID: 0141732329     PISSN: 09240136     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0924-0136(03)00574-0     Document Type: Article

References (20)

1. Ghosh P.K., Gupta S.R., Gupta P.C., Rathi R. Fatigue characteristics of pulsed MIG welded Al-Zn-Mg alloy. J. Mater. Sci. 26:1991;6161-6170.
2. Robinson I.B., Baysinger F.R. Welding aluminium alloy 7039. Welding J. 45:1966;433s-444s.
3. Lee Ch., Kim S.W., Yoon E.P. Electron beam welding characteristics of high strength aluminium alloys for express train applications. Sci. Technol. Welding Joining. 5(5):2000;277-283.
4. Gibbs F.E. Development of filler metals for welding Al-Zn-Mg alloy 7039. Welding J. 45:1966;445s-453s.
5. Young J.G. BWRA experience in welding of Al-Zn-Mg alloys. Welding J. 47:1968;451s-461s.
6. Y. Yang, et al., Prevention of welding hot cracking of high strength aluminium alloys by mechanical rolling, in: Proceedings of the Conference on Trends in Welding Research, American Society for Metals, Pine Mountain, GA, 1998, pp. 700-705.
7. Yang Y.et al. A hot cracking mitigation technique for welding high strength aluminium alloy. Welding J. 79(1):2000;9s-17s.
8. Kou S., Le Y. Nucleation mechanism and grain refining of weld metal. Welding J. 65:1986;305s-313s.
9. S. Kou, Grain structure development in the fusion zone, in: S.A. David, J.M. Vitek (Eds.), Proceedings of the Conference on Recent Trends in Welding Science and Technology, Gatlingburg, TN, 1989, pp. 137-146.
10. F. Matsuda, et al., Effect of additional elements on weld solidification crack susceptibility of Al-Zn-Mg alloy, Report II, Transactions of the Japan Welding Research Institute, vol. 12, 1983, pp. 93-102.
11. Dvornak M.J., Frost R.H., Olson D.L. The weldability and grain refinement of Al-2.2Li-2.7Cu. Welding J. 68:1989;327s-335s.
12. F. Matsuda, et al., Effect of additional elements on weld solidification crack susceptibility of Al-Zn-Mg alloy, Report III, Transactions of the Japan Welding Research Institute, vol. 13, 1984, pp. 57-66.
13. Pearce B.P., Kerr H.W. Grain refinement in magnetically stirred GTA welds of aluminium alloys. Metall. Trans. B. 12(9):1981;479-486.
14. Mousavi M.G., Cross C.E., Grong O. Effect of scandium and titanium-boron on grain refinement and hot cracking of aluminium alloy 7108. Sci. Technol. Welding Joining. 4(6):1999;381-388.
15. Charov V.O. Weldability of experimental alloys of Al-Zn-Mg system. Avt. Svarka. 7:1999;20-23.
16. Gutierrez A., Lippold J.C., Lin W. Mater. Sci. Forum. 217-222:1996;1691-1696.
17. Reddy G.M., Gokhale A.A., Prasad Rao K. Weld microstructure refinement in a 1441 grade Al-Li alloy. J. Mater. Sci. 32:1997;4117-4126.
18. McCartney D.G. Grain refining of aluminium and its alloys using inaculants. Int. Mater. Rev. 34(5):1989;247-260.
19. Dvornak M.J., Frost R.H., Olson D.L. Influence of solidification kinetics on aluminium weld grain refinement. Welding J. 70:1991;271s-276s.
20. Tseng C.G., Savage W.F. The effect of arc oscillation. Welding J. 50:1971;777-786.