Explosive Welding (EXW) is one of the solid-state joining techniques. A controlled explosion takes place on the surface of the flyer plate, which results in the bonding with base plate. There are basically two type of materials that can be welded together, i.e., similar and dissimilar materials. In this review paper we did a detailed study on the recent work done in this field. We also examined the micro and macro structural properties of the welded composites, briefly. Further we focused on how strong bonding enhanced corrosion resistivity in the composite formed. Detonation velocity plays an important role in the strength of bonding. From the study of all researches referenced in this paper we found that firstly, same element can behave differently in different scenario. Secondly, how bonding between multi-layer elements is depended upon welding position and detonation velocity.

1. T. Tokunaga, M. Ohno, and K. Matsuura, “Coatings on mg alloys and their mechanical properties: A review,” Journal of Materials Science & Technology, vol. 34, no. 7, pp. 1119–1126, 2018. doi: https://doi.org/10.1016/j.jmst.2017.12.004
2. J. Verma and R. V. Taiwade, “Effect of weldingprocesses and conditions on the microstructure, mechanical properties and corrosion resistance of duplex stainless steel weldments—a review,” Journal of Manufacturing Processes, vol. 25, pp. 134–152, 2017. doi: https://doi.org/10.1016/j.jmapro.2016.11.003
3. M. Yang, H. Ma, Z. Shen, Z. Huang, Q. Tian, and J. Tian, “Dissimilar material welding of tantalum foil and Q235 steel plate using improved explosive welding technique,” Materials & Design, vol.186, pp. 1–12, 2020. doi: https://doi.org/10.1016/j.matdes.2019.108348
4. R. Kosturek, M. Wachowski, L. Snie ́ zek, M. Gloc, and U. Sobczak, “The effects of the heat treatment on the microstructure of inconel 625/steel bimetal joint obtained by explosive welding,” in MATEC Web of Conferences, Barcelona, Spain, 2018. doi: https://doi.org/10.1051/matecconf/201824201007
5. G. Costanza, M. E. Tata, and D. Cioccari, “Explosion welding: Process evolution and parameters optimization,” in Materials Science Forum, vol. 941. Trans Tech Publ, 2018. doi: https://doi.org/10.4028/www.scientific.net/msf.941.1558 pp. 1558–1564.
6. H.-C. Lu and M.-C. Ho, “A study on designing the identity of a product,” Journal of ICT, Design, Engineering and Technological Science, vol. 1, no. 2, pp. 48–55, 2017. doi: https://doi.org/10.33150/jitdets-1.2.4
7. F. Mahi and U. Dilthey, “Joining of metals,” in Encyclopedia of Materials: Science and Technology, U. Dilthey, Ed. Amsterdam, Netherlands: Elsevier, 2016.
8. X. Chen, X. Li, X. Wang, H. Yan, K. Li, and X. Zeng, “Bonding mechanism of explosive compaction–welding sintering,” Journal of Manufacturing Processes, vol. 46, pp. 1–15, 2019. doi: https://doi.org/10.1016/j.jmapro.2019.08.018
9. F. Findik, “Recent developments in explosive welding,” Materials & Design, vol. 32, no. 3, pp. 1081–1093, 2011. doi: https://doi.org/10.1016/j.matdes.2010.10.017
10. Y. Wei, H. Li, F. Sun, and J. Zou, “The interfacial characterization and performance of Cu/Alconductive heads processed by explosion welding, cold pressure welding, and solid-liquid casting,” Metals, vol. 9, no. 2, pp. 1–13, 2019. doi: https://doi.org/10.3390/met9020237
11. W. Deng, J. H. Lei, W. L. Qu, and Z. H. Jia, “Research on the characteristics of Ti-Al composite tube by explosive welding,” in Materials Science
    Forum, vol. 861. Trans Tech Publ, 2016. doi: https://doi.org/10.4028/www.scientific.net/msf.861.166 pp.166–170.
12. J. Ning, L.-j. Zhang, M.-x. Xie, H.-X. Yang, X.-q. Yin, and J.-x. Zhang, “Microstructure and property inhomogeneity investigations of bonded Zr/Ti/steel trimetallic sheet fabricated by explosive welding,” Journal of Alloys and Compounds, vol. 698, pp. 835–851, 2017. doi: https://doi.org/10.1016/j.jallcom.2016.12.213
13. Y. Kaya, “Microstructural, mechanical and corrosion investigations of ship steel-aluminum bimetal composites produced by explosive welding,” Metals, vol. 8, no. 7, p. 544, 2018. doi: https://doi.org/10.3390/met8070544
14. M. Gloc, H. Słominska, and Ł. Ciupi ́ nski, “Hydrogen influence on microstructure and properties of novel explosive welded corrosion resistant clad materials,” Defect and Diffusion Forum, vol. 382, pp. 167–172, 2018. doi: https://doi.org/10.4028/www.scientific.net/DDF.382.167
15. G. Carvalho, I. Galvão, R. Mendes, R. Leal, and A. Loureiro, “Influence of base material properties on copper and aluminium–copper explosive welds,” Science and Technology of Welding and Joining, vol. 23, no. 6, pp. 501–507, 2018.
16. Y. Kaya, N. Kahraman, A. Durgutlu, and B. Gülenç, “Investigation of the microstructural, mechanical and corrosion properties of grade a ship steel-duplex stainless steel composites produced via explosive welding,” Metallurgical and Materials Transactions A, vol. 48, no. 8, pp. 3721–3733, 2017. doi: https://doi.org/10.1007/s11661-017-4161-3
17. N. Zhou, J. Jiang, K. Tang, and S. Z. Tang, “Study on fabrication and bonding interface of explosive welded steel/aluminum/steel composite plate,” Key Engineering Materials, vol. 753, pp. 188–193, 2017.

A. Alam, “Enhancing corrosion resistance in explosive welding,” International Journal of Applied and Physical Sciences, vol. 5, no. 3, pp. 73-81, 2019. doi: https://dx.doi.org/10.20469/ijaps.5.50002-3