Interface characteristics of explosive welding for different strength plates

ZENG Xiangyu; LI Xiaojie; CAO Jingxiang; WANG Xiaohong; YAN Honghao

doi:10.11883/bzycj-2018-0400

Volume 39 Issue 5

May 2019

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DENG Shu-sheng, GENG Ji-hui, TAN Jun-jie. Numerical calculation of blast loads from a bursting pressurized vessel[J]. Explosion And Shock Waves, 2007, 27(1): 1-6. doi: 10.11883/1001-1455(2007)01-0001-06

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ZENG Xiangyu, LI Xiaojie, CAO Jingxiang, WANG Xiaohong, YAN Honghao. Interface characteristics of explosive welding for different strength plates[J]. Explosion And Shock Waves, 2019, 39(5): 055302. doi: 10.11883/bzycj-2018-0400

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Interface characteristics of explosive welding for different strength plates

doi: 10.11883/bzycj-2018-0400

1.
Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, Liaoning, China
2.
State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, Liaoning, China
3.
Dalian Shipbuilding Industry Explosion Processing Research Institute Co., Ltd, Dalian 116024, Liaoning, China

Received Date: 2018-10-18
Rev Recd Date: 2018-12-12
Publish Date: 2019-05-01

Abstract

Abstract

This work studies the effect of base plate initial tensile strength on interface morphology and welding quality in explosive welding. The plates with different initial tensile strength were fabricated via explosive welding method under the same parameters. The microstructure of the interface for the explosive welding sample was analyzed, and the results showed that the interface of the explosive welding sample was greatly influenced by the strength of the material, the interface was formed of over-melted, periodic ripples and finally flattening with the increasing strength of the material. Combined with the numerical simulation results, it is found that the interface melting zone is large and can be considered as an incompressible fluid for analysis when the specific pressure of explosive welding is high. When the specific pressure is low, the local temperature rising speed of the welded sample will be higher and the adiabatic shear zone will be formed under the action of plastic strain, although the interface will still melt. The strength of the material cannot be neglected for the explosive welding.
- explosive welding,
- material strength,
- interface morphology

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References

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