Enhancing strength, ductility, and fatigue performance of Al-Zn-Mg-Cu-Sc-Zr alloy using a hybrid approach: Wire-arc directed energy deposition and interlayer friction stir processing

doi:10.1016/j.jmatprotec.2023.118173

IMR OpenIR

	Enhancing strength, ductility, and fatigue performance of Al-Zn-Mg-Cu-Sc-Zr alloy using a hybrid approach: Wire-arc directed energy deposition and interlayer friction stir processing
	Guo, Xinpeng 1; Ni, Dingrui 2; Li, Huijun 1; Xue, Peng 2; Xu, Rongzheng 3; Pan, Zengxi 1; Zhou, Siyu 3; Ma, Zongyi 2
通讯作者	Li, Huijun(huijun@uow.edu.au) ; Xue, Peng(pxue@imr.ac.cn)
	2023-12-01
发表期刊	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
ISSN	0924-0136
卷号	322 页码:14
摘要	Porosity defects are the main issues faced by aluminum alloys manufactured by wire-arc directed energy deposition (WA-DED), which seriously affect the mechanical properties of WA-DED aluminum alloys, especially the fatigue properties. Thus far, there is still no effective solution for the elimination of porosity in high-strength WA-DED aluminium alloys. In this study, an innovative hybrid WA-DED + interlayer friction stir processing (FSP) method was applied to successfully fabricate thick-walled Al-Zn-Mg-Cu-Sc-Zr aluminum alloy component with enhanced strength-ductility and fatigue properties by utilizing a custom 7B55-Sc wire. The porosity defects caused by the WA-DED process were significantly reduced in the FSP effective zone, and the original continuous grain boundary eutectic structures were broken up and dispersed along the grain boundaries. The grains were also further refined with an average size of about 1.1 +/- 0.2 mu m in the stirring zone (SZ) and 1.6 +/- 0.3 mu m in the overlapping SZ. The nanoscale intragranular precipitates (IGPs) were mostly composed of both rod-like eta Mg(Zn,Cu,Al)2 phases and secondary Al3(Sc, Zr) phases. The yield strength (YS), ultimate tensile strength (UTS) and uniform elongation (EL) in the horizontal and vertical directions were all substantially improved comparing with the WA-DED 7B55-Sc component, especially in the horizontal direction, reaching 387 +/- 7 MPa, 511 +/- 15 MPa and 14.6 +/- 0.5%, respectively. The fatigue property after 1 x 107 cycles for the WA-DED + interlayer FSP 7B55-Sc sample was significantly increased by 81%, reaching 170 MPa in vertical direction compared to 100 MPa of the WA-DED 7B55-Sc component.
关键词	Wire-arc directed energy deposition Al-Zn-Mg-Cu-Sc-Zr alloy Friction stir processing Microstructure Mechanical property Fatigue property
资助者	China Scholarship Council ; Liaoning Province Excellent Youth Foundation ; Youth Innovation Promotion Association of the Chi- nese Academy of Sciences
DOI	10.1016/j.jmatprotec.2023.118173
收录类别	SCI
语种	英语
资助项目	China Scholarship Council[202208200005] ; Liaoning Province Excellent Youth Foundation[2021-YQ-01] ; Youth Innovation Promotion Association of the Chi- nese Academy of Sciences[Y2021061]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
WOS记录号	WOS:001088955300001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177828
专题	中国科学院金属研究所
通讯作者	Li, Huijun; Xue, Peng
作者单位	1.Univ Wollongong, Sch Mech Mat & Mechatron & Biomed Engn, Wollongong, NSW 2522, Australia 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Shenyang Aerosp Univ, Sch Mat Sci & Engn, Shenyang 110136, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xinpeng,Ni, Dingrui,Li, Huijun,et al. Enhancing strength, ductility, and fatigue performance of Al-Zn-Mg-Cu-Sc-Zr alloy using a hybrid approach: Wire-arc directed energy deposition and interlayer friction stir processing[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2023,322:14.
APA	Guo, Xinpeng.,Ni, Dingrui.,Li, Huijun.,Xue, Peng.,Xu, Rongzheng.,...&Ma, Zongyi.(2023).Enhancing strength, ductility, and fatigue performance of Al-Zn-Mg-Cu-Sc-Zr alloy using a hybrid approach: Wire-arc directed energy deposition and interlayer friction stir processing.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,322,14.
MLA	Guo, Xinpeng,et al."Enhancing strength, ductility, and fatigue performance of Al-Zn-Mg-Cu-Sc-Zr alloy using a hybrid approach: Wire-arc directed energy deposition and interlayer friction stir processing".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 322(2023):14.