A dynamic study of effect of multiple parameters on interface characteristic in double-vertical explosive welding
Previous studies focused on the research of single parameters on the bonding quality of explosive welded composite plates. To explore the dynamic influence of multiple parameters on the interface, a VST (velocity, stand-off gap and charge thickness) function was proposed. The three-dimensional diagr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ab6538 |
| _version_ | 1797747074809200640 |
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| author | Zerui Sun Changgen Shi Zhonghang Fang Hang Shi |
| author_facet | Zerui Sun Changgen Shi Zhonghang Fang Hang Shi |
| author_sort | Zerui Sun |
| collection | DOAJ |
| description | Previous studies focused on the research of single parameters on the bonding quality of explosive welded composite plates. To explore the dynamic influence of multiple parameters on the interface, a VST (velocity, stand-off gap and charge thickness) function was proposed. The three-dimensional diagram clearly and intuitively showed that the collision velocity was comprehensively affected by the explosive thickness and stand-off gap. Four different sets of parameters were chosen and the composite plates were successfully manufactured in the experiment of double vertical explosive welding (DVEW). The interface morphology, element distribution and the mechanical property were discussed respectively. The optical microscope showed that all the samples were wavy interface but the dimensions of the ripples was different. The defects, such as melting layer and island region, appeared less frequently at bonding interface when the collision velocity was lower. The grain refinement, adiabatic shear bands were found at the crest and side of wave respectively. The width of elements diffusion layer of joint increased in line with higher collision velocity. It was indicated the maximum microhardness reached 293HV at the bonding interface due to work hardening. Shear and tensile tests suggested the the mechanical property of large wave was better than that of small wavy interface. The fracture morphology showed obvious stratification and the dimple at the bonding interface was smaller in diameter and less plastic. |
| first_indexed | 2024-03-12T15:46:00Z |
| format | Article |
| id | doaj.art-62b1e7f0103d4695ab734060aecbaa20 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:46:00Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-62b1e7f0103d4695ab734060aecbaa202023-08-09T15:25:56ZengIOP PublishingMaterials Research Express2053-15912020-01-017101654110.1088/2053-1591/ab6538A dynamic study of effect of multiple parameters on interface characteristic in double-vertical explosive weldingZerui Sun0https://orcid.org/0000-0003-3639-7823Changgen Shi1Zhonghang Fang2Hang Shi3School of field engineering, PLA Army Engineering University , Nanjing 210007, People’s Republic of ChinaSchool of field engineering, PLA Army Engineering University , Nanjing 210007, People’s Republic of ChinaSchool of field engineering, PLA Army Engineering University , Nanjing 210007, People’s Republic of ChinaNanjing Runbang New Materials Group, Nanjing 201803, People’s Republic of ChinaPrevious studies focused on the research of single parameters on the bonding quality of explosive welded composite plates. To explore the dynamic influence of multiple parameters on the interface, a VST (velocity, stand-off gap and charge thickness) function was proposed. The three-dimensional diagram clearly and intuitively showed that the collision velocity was comprehensively affected by the explosive thickness and stand-off gap. Four different sets of parameters were chosen and the composite plates were successfully manufactured in the experiment of double vertical explosive welding (DVEW). The interface morphology, element distribution and the mechanical property were discussed respectively. The optical microscope showed that all the samples were wavy interface but the dimensions of the ripples was different. The defects, such as melting layer and island region, appeared less frequently at bonding interface when the collision velocity was lower. The grain refinement, adiabatic shear bands were found at the crest and side of wave respectively. The width of elements diffusion layer of joint increased in line with higher collision velocity. It was indicated the maximum microhardness reached 293HV at the bonding interface due to work hardening. Shear and tensile tests suggested the the mechanical property of large wave was better than that of small wavy interface. The fracture morphology showed obvious stratification and the dimple at the bonding interface was smaller in diameter and less plastic.https://doi.org/10.1088/2053-1591/ab6538explosive weldingwelding parametersinterface morphologymechanical characterization and fracture analysis |
| spellingShingle | Zerui Sun Changgen Shi Zhonghang Fang Hang Shi A dynamic study of effect of multiple parameters on interface characteristic in double-vertical explosive welding Materials Research Express explosive welding welding parameters interface morphology mechanical characterization and fracture analysis |
| title | A dynamic study of effect of multiple parameters on interface characteristic in double-vertical explosive welding |
| title_full | A dynamic study of effect of multiple parameters on interface characteristic in double-vertical explosive welding |
| title_fullStr | A dynamic study of effect of multiple parameters on interface characteristic in double-vertical explosive welding |
| title_full_unstemmed | A dynamic study of effect of multiple parameters on interface characteristic in double-vertical explosive welding |
| title_short | A dynamic study of effect of multiple parameters on interface characteristic in double-vertical explosive welding |
| title_sort | dynamic study of effect of multiple parameters on interface characteristic in double vertical explosive welding |
| topic | explosive welding welding parameters interface morphology mechanical characterization and fracture analysis |
| url | https://doi.org/10.1088/2053-1591/ab6538 |
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