Effects of Ag addition on the microstructures and properties of Al-Mg-Si-Cu alloys

IMR OpenIR

	Effects of Ag addition on the microstructures and properties of Al-Mg-Si-Cu alloys
	He, LZ; Cao, YH; Zhou, YZ; Cui, JZ; He, LZ (reprint author), Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Liaoning, Peoples R China.; He, LZ (reprint author), Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China.
	2018
发表期刊	INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN	1674-4799
卷号	25 期号:1 页码:62-72
摘要	Effects of Ag addition on the microstructures, aging characteristics, tensile properties, electrochemical properties, and intergranular corrosion (IGC) properties of Al-1.1Mg-0.8Si-0.9Cu-0.35Mn-0.02Ti alloy were investigated using scanning electronic microscopy and transmission electronic microscopy. The aging process of Al-Mg-Si-Cu alloys was accelerated by the addition of Ag. The strength of peak-aged Al-Mg-Si-Cu alloys was enhanced by Ag addition because of the high density of beta aEuro(3)- and L-phase age-hardening precipitates. The corrosion performance of the Al-Mg-Si-Cu alloy is closely related to the aging conditions and is independent of the Ag content. The IGC susceptibility is serious in the peak-aged alloy because of the continuous distribution of Cu-rich Q-phase precipitates along grain boundaries. Ag addition reduces the size of the grain-boundary-precipitate Q phase and the width of the precipitate-free zone and thus results in decreased IGC susceptibility of Al-Mg-Si-Cu alloys.; Effects of Ag addition on the microstructures, aging characteristics, tensile properties, electrochemical properties, and intergranular corrosion (IGC) properties of Al-1.1Mg-0.8Si-0.9Cu-0.35Mn-0.02Ti alloy were investigated using scanning electronic microscopy and transmission electronic microscopy. The aging process of Al-Mg-Si-Cu alloys was accelerated by the addition of Ag. The strength of peak-aged Al-Mg-Si-Cu alloys was enhanced by Ag addition because of the high density of beta aEuro(3)- and L-phase age-hardening precipitates. The corrosion performance of the Al-Mg-Si-Cu alloy is closely related to the aging conditions and is independent of the Ag content. The IGC susceptibility is serious in the peak-aged alloy because of the continuous distribution of Cu-rich Q-phase precipitates along grain boundaries. Ag addition reduces the size of the grain-boundary-precipitate Q phase and the width of the precipitate-free zone and thus results in decreased IGC susceptibility of Al-Mg-Si-Cu alloys.
部门归属	[he, li-zi ; cao, yi-heng ; cui, jian-zhong] northeastern univ, key lab electromagnet proc mat, minist educ, shenyang 110819, liaoning, peoples r china ; [he, li-zi ; cui, jian-zhong] northeastern univ, sch mat sci & engn, shenyang 110819, liaoning, peoples r china ; [zhou, yi-zhou] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
关键词	Almgsi(Cu) Model Alloy Aluminum-alloy Intergranular Corrosion Hardening Behavior Heat-treatment Precipitation Copper Phase Temperatures
学科领域	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
资助者	National Natural Science Foundation of China [51574076]
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79614
专题	中国科学院金属研究所
通讯作者	He, LZ (reprint author), Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Liaoning, Peoples R China.; He, LZ (reprint author), Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	He, LZ,Cao, YH,Zhou, YZ,et al. Effects of Ag addition on the microstructures and properties of Al-Mg-Si-Cu alloys[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2018,25(1):62-72.
APA	He, LZ,Cao, YH,Zhou, YZ,Cui, JZ,He, LZ ,&He, LZ .(2018).Effects of Ag addition on the microstructures and properties of Al-Mg-Si-Cu alloys.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,25(1),62-72.
MLA	He, LZ,et al."Effects of Ag addition on the microstructures and properties of Al-Mg-Si-Cu alloys".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 25.1(2018):62-72.