Microstructure and properties of 1050A/AZ31 bimetallic bars produced by explosive cladding and subsequent groove rolling process
| Autor: | Sebastian Mróz, R. Mola, Piotr Szota, A. Stefanik |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Structural material Mechanical Engineering Detonation velocity Intermetallic Forming processes 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Bimetal Shear (sheet metal) Explosion welding 0103 physical sciences Composite material 0210 nano-technology Civil and Structural Engineering |
| Zdroj: | Archives of Civil and Mechanical Engineering. 20 |
| ISSN: | 1644-9665 |
| Popis: | Within the framework of this study, the 1050A/AZ31 round bimetal bars were produced by the explosive cladding method and subsequent groove rolling process. LM/SEM investigation shown that by proper selection of the explosive cladding parameters (mainly initial distance between 1050A tube and AZ31 core and detonation velocity) it is possible to produce 1050A/AZ31 feedstocks without a continuous layer of Mg–Al intermetallic phases on the interface between joined materials. The experimental tests of the groove rolling process of 1050A/AZ31 bars were supplemented with a theoretical analysis using FEM-based numerical modelling. Based on the test results obtained, it was found that the interface of the 1050A/AZ31 bar rolling at a temperature (300 °C) was characterized by the generation of a thin continuous intermetallic layer without cracks. Applying a higher rolling temperature of 400 °C, which is usually used in hot forming processes of Mg alloys, led to the production of a thicker intermetallic layer, which cracked during the rolling process as a result of deformation. Strength of the fabricated bimetal joints was high, they did not delaminate during shear tests. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink