Compound Extrusion Forming and Interface Microstructure of Al/Mg Dissimilar Metal

doi:10.11868/j.issn.1001-4381.2015.001407

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Compound Extrusion Forming and Interface Microstructure of Al/Mg Dissimilar Metal
	Qiao, Ji-Sen 1,2; Xiang, Yang-Zhi 1,2; Nie, Shu-Cai 1; Zhang, Han 1,2
刊名	Cailiao Gongcheng/Journal of Materials Engineering
	2017-11-20
卷号	45 期号:11 页码:78-83
关键词	Backscattering Binary alloys Diffraction Electron scattering Extrusion Grain boundaries Grain size and shape Magnesium alloys Metal extrusion Metallic matrix composites Microhardness Microstructure Scanning electron microscopy Vanadium alloys Aluminum-magnesium Average grain size Brittle phase Compound extrusion Electron backscattering diffraction Extrusion temperatures Interface mi-crostructure Microhardness tests
ISSN号	10014381
DOI	10.11868/j.issn.1001-4381.2015.001407
英文摘要	The extrusion process parameters were optimized based on Deform 2D finite element simulation, aluminum magnesium bimetal composite extrusion experiment was conducted under the extrusion rate of 2mm/s and extrusion temperature of 470. The microstructure of interface bonding layer was observed and analyzed by using scanning electron microscopy(SEM), microhardness test and electron backscattering diffraction(EBSD).The results show that interface layer generates in the contact region of aluminum and magnesium alloys, new phases in the layer are Al12Mg17 which is close to the AZ31 magnesium substrate and Al3Mg2 which is close to the aluminum substrate. The average microhardness value of Al3Mg2 phase is the highest, the average value is about 210HV, and that of Al12Mg17 is 170HV, the interface area forms a typical brittle layer as the hardness is higher than the parent metal on both substrate sides, the EBSD test shows that the average grain size of Al12Mg17 phase is 30μm, the average grain size of Al3Mg2 phase is about 20μm, different grain orientation can be observed in composite interface bonding layer regional and the grain size is not uniform, the outer pure aluminum matrix composite orientation area is uniform, some recrystallization of new generation phase occurs on the grain boundary. © 2017, Journal of Materials Engineering. All right reserved.
WOS研究方向	Materials Science
语种	中文
出版者	Beijing Institute of Aeronautical Materials (BIAM)
WOS记录号	WOS:000465450300012
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114052]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	1.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory of Advanced Processing and Recycling Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Qiao, Ji-Sen,Xiang, Yang-Zhi,Nie, Shu-Cai,et al. Compound Extrusion Forming and Interface Microstructure of Al/Mg Dissimilar Metal[J]. Cailiao Gongcheng/Journal of Materials Engineering,2017,45(11):78-83.
APA	Qiao, Ji-Sen,Xiang, Yang-Zhi,Nie, Shu-Cai,&Zhang, Han.(2017).Compound Extrusion Forming and Interface Microstructure of Al/Mg Dissimilar Metal.Cailiao Gongcheng/Journal of Materials Engineering,45(11),78-83.
MLA	Qiao, Ji-Sen,et al."Compound Extrusion Forming and Interface Microstructure of Al/Mg Dissimilar Metal".Cailiao Gongcheng/Journal of Materials Engineering 45.11(2017):78-83.