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

doi:10.1016/j.msea.2022.142677

	Theoretical design and experimental study of the interlayer of Al/Mg bimetallic composite plate by solid-liquid cast rolling
	Yang, H.K.2; Qiu, J.2; Cao, C.3; Li, Y.D.1,2; Song, Z.X.2; Liu, W.J.2
刊名	Materials Science and Engineering A
	2022-02-17
卷号	835
关键词	Aluminum alloys Binary alloys Calculations Phase composition Phase interfaces Rolling Tensile strength Zinc alloys 6061 aluminum alloys AZ31B magnesium alloys Bimetallic composites Bonding layers Composite plates Interface structures Plate temperature Shears strength Solid/liquid Zn interlayer
ISSN号	0921-5093
DOI	10.1016/j.msea.2022.142677
英文摘要	In this study, to enhance the bonding strength of a solid-liquid cast rolled 6061 Al/AZ31B Mg bimetallic composite plate, an arc-sprayed Zn composite intermediate layer was deposited on the surface of an AZ31B magnesium alloy solid substrate. Through phase diagram analysis and first-principles calculation, it was observed that the introduction of a Zn interlayer changed the bonding-interface phase composition of the Al/Mg bimetallic composite plate, which positively improved the mechanical properties of the previously unaltered plate. Subsequently, the impact of Zn interlayer on interfacial microstructure, phase composition, and mechanical properties of Al/Mg bimetallic composite plates were experimentally studied. The results showed that Zn was gradually alloyed into the bonding layer of the composite plate with increasing covering plate temperature. Further, a few new phases, such as MgZn, MgZn2, and AlMg4Zn11, having strong deformation resistance and better toughness, were formed at the Al/Mg bonding interface, which decreased the content of brittle phases such as Al3Mg2 and Al12Mg17. In addition, it was also found that the mechanical properties improved with the increase in covering plate temperature. At a covering plate temperature of 680 °C, the tensile strength and shear strength reached their peak values of 136 MPa and 74 MPa, respectively. Specifically, the tensile and shear strengths of the Al–Mg bonding layer with Zn interlayer increased by about 25% compared with the composite Al–Mg bonding layer without the interlayer. Contrastingly, at the covering plate temperature of 700 °C, while the diffusion of elements and thickness of the binding layer increased, the tensile and shear strengths decreased to 109 MPa and 54 MPa, respectively. © 2022 Elsevier B.V.
语种	英语
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158006]
专题	温州泵阀工程研究院兰州理工大学
作者单位	1.Key Laboratory of Nonferrous Metal Alloys and Processing, Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Wenzhou Pump and Valve Engineering Research Institute of Lanzhou University of Technology, Wenzhou; 325105, China
推荐引用方式 GB/T 7714	Yang, H.K.,Qiu, J.,Cao, C.,et al. Theoretical design and experimental study of the interlayer of Al/Mg bimetallic composite plate by solid-liquid cast rolling[J]. Materials Science and Engineering A,2022,835.
APA	Yang, H.K.,Qiu, J.,Cao, C.,Li, Y.D.,Song, Z.X.,&Liu, W.J..(2022).Theoretical design and experimental study of the interlayer of Al/Mg bimetallic composite plate by solid-liquid cast rolling.Materials Science and Engineering A,835.
MLA	Yang, H.K.,et al."Theoretical design and experimental study of the interlayer of Al/Mg bimetallic composite plate by solid-liquid cast rolling".Materials Science and Engineering A 835(2022).