Microstructure and mechanical properties of the AZ31/GW103K bimetal composite rods fabricated by co-extrusion

Meng, Yunpeng; Zhang, Hua; Lin, Boyu; Wang, Lifei; Fan, Jianfeng; Lu, Liwei; Zhou, Xin; Huang, Hailiang; Zhang, Shanzhou; Roven, Hans Jørgen

doi:10.1016/j.msea.2021.142578

Cited by 10 publications

(3 citation statements)

References 41 publications

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“…Figure 9e shows that the texture of unDRXed microstructure is shifting to the TD, indicating that AZ31-A/G is also deformed along TD during co-extrusion. As mentioned in previous studies, for Mg-based bimetallic composite rods, the co-extrusion does not change the texture type due to the axisymmetric distribution of forces in the metal during co-extrusion [13,31].…”

Section: Effect Of Co-extrusion On Texture Of Az31mentioning

confidence: 57%

Effect of Extrusion Combination Types on Microstructure and Mechanical Properties of the AZ31/GW103K Bimetallic Composite Plates

Meng

Lin

Wang

et al. 2022

Acta Metall. Sin. (Engl. Lett.)

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The AZ31/GW103K bimetallic composite plates were prepared by co-extrusion of diff erent combination types (sandwich extrusion type and double semicircle extrusion type), and eff ects of diff erent extrusion combination types on the microstructure and mechanical properties of bimetallic composite plates were systematically investigated. The results show that both the AZ31/GW103K bimetallic composite plates prepared by diff erent extrusion combination types have good metallurgical bonding, and changing the combination type does not aff ect the thickness of the interfacial transition layer of composite plates. Compared with the monolithic AZ31 and GW103K extruded plates, co-extrusion can promote the dynamic recrystallization (DRX) of AZ31 and GW103K components in composite plates, and double semicircular extrusion type has a better promotion eff ect on the DRX than sandwich extrusion type. In addition, the texture of AZ31 in both monolithic AZ31 and AZ31/GW103K/AZ31 (A/G/A) plates is a typical (0002) basal texture, while that in the AZ31/GW103K (A/G) composite plate shifts to the tangent direction (TD) of extruded plate. Compared with the monolithic AZ31 extruded plate, both the yield strength and tensile strength of A/G and A/G/A bimetallic composite plates are signifi cantly improved. The strength of A/G/A composite plate is higher than that of A/G composite plate, but its elongation is worse. Meanwhile, co-extrusion reduces the dislocation density of AZ31 and GW103K components in composite plates, and diff erent extrusion combination types also aff ect the dislocation density.

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Section: Effect Of Co-extrusion On Texture Of Az31mentioning

confidence: 57%

Effect of Extrusion Combination Types on Microstructure and Mechanical Properties of the AZ31/GW103K Bimetallic Composite Plates

Meng

Lin

Wang

et al. 2022

Acta Metall. Sin. (Engl. Lett.)

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“…In recent years, Mg and its alloys have been increasingly used in automobile, aerospace, and 3C industries, due to their low density and high specific strength [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. However, the applications of these Mg alloys have been extremely limited because of their low strength, low formability, and poor corrosion resistance at ambient temperature [ 9 , 10 , 11 , 12 ]. As another lightweight material, Al and its alloys exhibit an outstanding corrosion resistance, mechanical performance, and formability [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Ti Particles Addition on the Microstructure and Mechanical Behavior of Mg AZ31/Al 6082 Composite Sheets

Dang

Jiang

et al. 2023

Materials

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In this study, Ti particles reinforced Mg AZ31/Al 6082 composite sheets were successfully prepared by hot rolling, with the aim of revealing the effect of Ti particles addition on the mechanical behavior and microstructure of Mg AZ31/Al 6082 composite sheets. The results showed that Ti particles were uniformly distributed at the interface of the Mg/Al-Ti composite sheets, which could greatly reduce the amount of Mg-Al intermetallic compounds during annealing treatment. Compared to the Mg/Al sheet, the tensile strength and elongation of the Mg/Al-Ti sheet could be improved simultaneously after the annealing treatment. Ti particles addition hardly affected the grain size, texture type, and tensile fracture morphology of the Mg layer and Al layer in the composite sheets before and after annealing. This present study provides a new perspective on the mechanical behavior and microstructure of Mg/Al composites through the addition of metal particles.

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“…However, the above-mentioned methods need complex processing to gain the desirable texture and mechanical properties. An enlightening insight on constructing a mixed texture through one-pass bimetal co-extrusion offers potential, i.e., Mg/Al [14][15][16] and Mg/Mg [17][18][19] composites. For example, an AZ31/7075 rod had a much lower tensioncompression yield asymmetry than a monolithic Mg rod, since the formation of a mixed texture changed the deformation modes during tension-compression [15].…”

Section: Introductionmentioning

confidence: 99%

Designing a Mixed Texture in Mg/Mg Laminated Composite via Bimetal Co-Extrusion to Ameliorate the Mechanical Anisotropy

Zhai

Wang

Jiang

et al. 2022

Metals

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Room-temperature (RT) mechanical anisotropy limits the broad applications of wrought magnesium (Mg) alloys. To weaken the anisotropy, here, we proposed a design idea to create a mixed texture. In the present study, we successfully fabricated the Mg-3Y/Mg-5Li (W3/L5, wt.%) laminated composite, having a mixed texture with a closely orthotropic shape, consisting of an ED-split component in the W3 layer and a TD-split in the L5 layer, via bimetal co-extrusion (ED and TD represent the extrusion and transverse directions, respectively). The mechanical results show that the W3/L5 laminated composite demonstrates a better isotropy at RT, indicating that forming a mixed texture is an effective method to reduce the anisotropy of wrought Mg alloys by bimetal co-extrusion. However, extremely poor interface shear strength, induced by rich O element voids on the interface, triggered poor interface bonding, leading to worse ultimate strength and elongation -to-failure. In future works, controlling co-extrusion parameters or implementing a suitable heat-treatment after extrusion will be necessary to further ameliorate the mechanical properties of the Mg/Mg laminated composites with mixed texture.

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Microstructure and mechanical properties of the AZ31/GW103K bimetal composite rods fabricated by co-extrusion

Cited by 10 publications

References 41 publications

Effect of Extrusion Combination Types on Microstructure and Mechanical Properties of the AZ31/GW103K Bimetallic Composite Plates

Effect of Extrusion Combination Types on Microstructure and Mechanical Properties of the AZ31/GW103K Bimetallic Composite Plates

The Effect of Ti Particles Addition on the Microstructure and Mechanical Behavior of Mg AZ31/Al 6082 Composite Sheets

Designing a Mixed Texture in Mg/Mg Laminated Composite via Bimetal Co-Extrusion to Ameliorate the Mechanical Anisotropy

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