Fabrication and Interface Structural Behavior of Mg/Al Thickness-Oriented Bonding Sheet via Direct Extrusion

Lei Gao; Feng Li; Ye Wang; Xing Mao Xiao; Peng Da Huo

doi:10.1007/s12540-021-01077-5

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자료유형: 학술저널

저자정보: Lei Gao (Harbin University of Science and Technology) Feng Li (Harbin University of Science and Technology) Ye Wang (Harbin University of Science and Technology) Xing Mao Xiao (Southwest Technique and Engineering Research Institute) Peng Da Huo (Harbin University of Science and Technology)

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.28 No.8

발행연도: 2022.8

수록면: 1,960 - 1,970 (11page)

DOI: 10.1007/s12540-021-01077-5

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Solid-state bonding of heterogeneous materials is one of the effective ways to achieve light weight. An extrusion formingprocess for Mg/Al thickness-oriented bonding sheet was carried out. Due to triaxial compressive stress in the extrusion container,the AZ31 and AA6061 billets were deformed and the bonding and forming of Mg/Al thickness-oriented sheet can berealized by this method. The observation results of the bonding position by using XRD, SEM and EDS showed that: at theforming temperature with 360–420 °C, it had a good bonding interface, and the width of the transition layer increased withthe increase of the forming temperature. The presence of brittle intermetallic compounds in the transition layer indicated thatmetallurgical bonding had occurred at the interface. Considering all factors comprehensively, when the forming temperaturewas 390 °C, the bonding quality was appropriate. Its tensile-shear strength was 42 MPa, the width of the interface transitionlayer was about 10 μm, and the microhardness was about 164.3 HV. This method provided scientific guidance and technicalreserves for green forming of Mg/Al sheets.

#AZ31/AA6061 · Extrusion · Thickness-oriented bonding · Interface transition layer · Intermetallic compounds

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