Effect of heat treatment on Zirconium/steel explosive composites

DOI:	10.11809/bqzbgcxb2025.03.036
Keywords:	explosive recombination; R60700/Gr.60; adhesive strength; interface morphology
Abstract:	Zirconium alloy has good corrosion resistance, and Zirconium/Steel composite materials prepared by explosive welding method are mainly used to manufacture corrosion resistant containers. To verify that Zirconium/Steel composite materials can meet processing requirements and harsh working conditions in the manufacturing and use of corrosion resistant containers,this study investigates the effects of different heat treatment regimens on Zirconium/Steel composite materials, and tests and analyzes their mechanical properties and interfacial microstructure. The results showed that after different heat treatments and insulation at 500 ℃ for 6 hours, the bonding strength of Zirconium/Steel composite reached its maximum value of 245 MPa, and no violent reaction occurred at the interface. A transition layer of about 2 μm was found at the interface of Zirconium/Steel material, with the main elements being Zr and Fe, and the elements showed a gradient distribution. The fracture mode of zirconium steel composite material after heat treatment is a mixed fracture combining ductile fracture and dissociation fracture.
Issue:	Vol. 46 No. 3 (2025)
Published:	2025-03-31
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