Theoretical design and experimental study of the interlayer of Al/Mg bimetallic composite plate by solid-liquid cast rolling

Yang, H.K.; Jin, Quan; Chen, Cao; Li, Y.D.; Song, Zhaoxi; Liu, W.J.

doi:10.1016/j.msea.2022.142677

Cited by 21 publications

(2 citation statements)

References 33 publications

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“…Similarly, this phenomenon can also be observed on the Mg side section. In contrast to the Al side, the presence of Al3Mg2 phase was not detected on the Mg side section, indicating that the toughness of the Al3Mg2 phase was higher than that of the Al12Mg17 phase, and the fracture occurred in the Al12Mg17 binding region with poor performance, which is consistent with the previous research [ 34 ].…”

Section: Resultssupporting

confidence: 90%

Interfacial Characteristics of 6061/AZ31B Composites in Multi-Pass Rolling

Yang

Jin

et al. 2022

Materials

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An Al 6061/Mg AZ31B composite plate with good bonding and excellent comprehensive mechanical properties was prepared through solid-liquid cast-rolling bonding (SLCRB). The microstructure evolution and mechanical behavior of Al/Mg composite plates under different rolling passes were studied. The results showed that with the increase of rolling passes, the bonding layer of the composite plate was crushed, and the base material on both sides of the substrate gradually grew towards the broken part of the bonding layer. The microstructure on both sides of the substrate extended along the rolling direction and was dynamically recrystallized to a certain extent. In the Mg substrate, because the preheating temperature was higher than its recrystallization temperature, with the increase of rolling passes, the grains in Mg substrate were crystallized. When the rolling passes reached the fourth pass, complete recrystallization basically took place in the Mg substrate. With the change of the internal structure and bonding layer on both sides of the substrate, the mechanical properties of the composite plate can be improved gradually. The tensile strength increased from 136 MPa before rolling to 190 MPa at the fourth pass, and the shear strength increased from 74 MPa to 98 MPa, with growth rates of about 40% and 32%, respectively. The elongation of the composite plate decreased from 6.3% to 5.4%, a decrease of about 1%.

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Section: Resultssupporting

confidence: 90%

Interfacial Characteristics of 6061/AZ31B Composites in Multi-Pass Rolling

Yang

Jin

et al. 2022

Materials

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“…After corrugated rolling, the straightening process is essential to achieve the strict shape requirements and specific residual stress range in extreme service conditions of high temperature and etching [14,15]. The elastic-plastic deformation at the interface of Mg/Al corrugated composite plate in straightening would have a great impact on the interface morphology [16]. In the rolling, a mathematical model which reflected the change of the maximal absolute shear stress for the center layer was established, by which the maximal absolute shear stress for the center layer can be easily calculated [17].…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Interface Morphology of Mg/Al Corrugated Composite Plate in the Straightening Process

Xing

Liu

et al. 2022

Materials

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The Mg/Al composite plate was developed in aerospace and other fields. At present, through the corrugated rolling method, the bonding strength of Mg/Al composite plate could be increased and the warpage could be reduced. However, this still requires the straightening process to reach the parameters’ range. In this work, the original interface morphology of Mg/Al corrugated composite plate was obtained by experimental characterization. Based on the principle of elastoplastic mechanics, the equations of straightener parameters and straightening process parameters were obtained and the influencing factors were deduced. So, the straightening model was established in an Abaqus. The effects of straightener parameters and straightening process parameters on the interface morphology were analyzed and the interface morphology was expressed by amplitude and period length of the equation. The results showed that bending moment, shear strength and the reduction of second roll played roles on the interface morphology. After the first straightening unit, the amplitude increased by 1.1% and the period length increased by 3%. Finally, a complete straightening parameter was designed, which included straightener parameters, straightening process parameters and straightening temperature. The aim of this work was to provide a theoretical basis for establishing a high precision Mg/Al corrugated composite plate straightening model, which could improve the bonding strength while ensuring the straightening effect.

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Insight on Interfacial Microstructure and Corrosion Characteristics of Mg/Al Explosive Welded Composite Plates

Lu,

Li,

Liang

et al. 2024

Adv Eng Mater

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Interfacial corrosion performance is crucial to the reliability of Mg/Al explosively welded composite plates. Nevertheless, more understanding is required concerning such interfacial corrosion. In this work, a combination of numerical simulation and experimental investigation was used to clarify the microstructure evolutions of AZ80‐Mg alloy/1060‐Al explosively welded composite plate. The formation of interfacial wave structure and the thermodynamic state were insighted through numerical simulation, which further enhanced the correlation between the interfacial microstructural heterogeneities and the interfacial corrosion characteristics. Galvanic corrosion was produced by the significant potential difference between the AZ80‐Mg and 1060‐Al, with multiple micro‐galvanic couples in the vortex zone. The corrosion occurred near the interface and gradually advanced away from the interface. After 1 h, the composite plates exhibited severe corrosion with deep pits on the Mg side, while the Al side was less affected. Within the vortex, however, the Mg‐rich region underwent little corrosion, whereas the Al‐rich region underwent significant corrosion, attributed to the increase in pH value caused by the Mg corrosion.

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Theoretical design and experimental study of the interlayer of Al/Mg bimetallic composite plate by solid-liquid cast rolling

Cited by 21 publications

References 33 publications

Interfacial Characteristics of 6061/AZ31B Composites in Multi-Pass Rolling

Interfacial Characteristics of 6061/AZ31B Composites in Multi-Pass Rolling

Investigation on the Interface Morphology of Mg/Al Corrugated Composite Plate in the Straightening Process

Insight on Interfacial Microstructure and Corrosion Characteristics of Mg/Al Explosive Welded Composite Plates

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