Characterization of Explosion-Bonded Ti-Alloy/Steel Plate with Ni Interlayer
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A three-layered explosion-welded (EXW) plate consisting of Ti-alloy/Ni/steel was investigated. Both the Ti/Ni and Ni/steel interfaces displayed a wavy shape typical of the EXW process, which reflects the occurrence of massive mass transfer during bonding. New phase formation was not observed at the Ni/steel interface, while, according to the SEM, XRD, and nanoindentation testing, the formation of brittle intermetallic phases took place at the Ti-alloy/Ni interface. These intermetallics serve as the weakest part of the joint and determine a brittle mode of fracture under tensile stress. The tensile strength of the joint is about 300 MPa, which is determined by intermetallic phases formed at the Ti/Ni interface.
KeywordsEXW Solid state welding Ti Steel
Special thanks to ATI-Allegheny Technologies Inc. for supplying the materials which permitted the research. The authors would also like to thank Zvia Shmul from Soreq Nuclear Center for her assistance with SAM, Hagit Didi from Ben Gurion University for her contribution to SEM operation, Dr. Sidney Cohen from the Weizmann Institute for his help with Nanoindentation, and Dr. Zehava Barkay from the Wolfson Applied Materials Research Center for her help with ESEM operation.
- 1.B. Crossland, Explosive Welding of Metals and Its Application. Oxford Series on Advanced Manufacturing, illustrated edn. (Clarendon Press, Oxford, 1982), pp. 1–39Google Scholar
- 2.O.R. Bergeman, G.R. Cowan, A.H. Holtzman, Experimental evidence of jet formation during explosive cladding. Trans. Soc. Min. Eng. AIME 236, 646–653 (1966)Google Scholar
- 3.F.A. McKee, B. Crossland, Further experiments on the mechanism of explosive welding, in Proceedings of the 5th International Conference of High Energy Rate Fabrication, June 24–26, Denver University, Denver, CO, 1975, pp. 1–25Google Scholar
- 8.A. Nobili, J.G. Banker, in Proceedings of Reactive Metals in Corrosive Applications Conference, September, Wah Chang, Albany, OR, 1999, pp. 83–88Google Scholar
- 10.H. Paul, M. Faryna, M. Prażmowski, R. Bański, Changes in the bonding zone of explosively welded sheets. Arch. Metall. Mater. 56(2), 463–474 (2011)Google Scholar
- 15.ASM Handbook, Properties & Selection—Nonferrous Alloys & Special-Purpose Materials, vol. 2, 10th edn. (ASM International, Novelty, 1992), pp. 431–435, 592–633Google Scholar
- 17.Metals Handbook, Properties and Selection: Irons, Steels, and High-Performance Alloys, vol. 1, 10th edn. (ASM International, Novelty, 1990), pp. 195–199Google Scholar
- 18.ASM Ready Reference, Thermal Properties of Metals, First Printing (ASM International, Novelty, 2002), pp. 28–29, 184–185Google Scholar