Enhancing the mechanical properties of wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy through cyclic deep cryogenic treatment

doi:10.1016/j.msea.2024.146838

IMR OpenIR

	Enhancing the mechanical properties of wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy through cyclic deep cryogenic treatment
	Hao, Shuai 1; Guo, Xinpeng 2; Cui, Jiayuan 1; Xue, Peng 3; Xu, Rongzheng 1; Guo, Xuming 1
通讯作者	Guo, Xinpeng(xg919@uowmail.edu.au) ; Xue, Peng(pxue@imr.ac.cn) ; Guo, Xuming(guoxuming@sau.edu.cn)
	2024-09-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	909 页码:12
摘要	In this paper, the effects of cyclic deep cryogenic treatment (CDCT) on the mechanical properties and the precipitated phases evolution of 7B55 aluminum alloy produced by wire arc directed energy deposition (WADED) were systematically investigated. The findings revealed that, under both T6 and CDCT conditions, the microstructure of the 7B55 aluminum alloy exhibited fine-equiaxed grains. Under the T6 condition, the precipitated phases within the grains were primarily composed of clustered GP zones and eta ' phases. Meanwhile, the eta phases were continuously distributed along the grain boundaries. Upon subjecting the material to three cycles of CDCT, a noticeable reduction in the number of GP zones within the grains was observed. Simultaneously, there was a substantial increase in the number of eta ' phases, accompanied by the occurrence of dislocation lines. The distribution of eta phases along the grain boundary transitioned to an interrupted pattern. Under the CDCT-Cycle 3 (CDCT-C3) condition, the ultimate tensile strength (UTS), yield strength (YS), and elongation (EL) achieved 658.6 +/- 4.5 MPa, 624.2 +/- 5.2 MPa, and 8.42 +/- 0.18 %, respectively. However, with the progression to four cycles of CDCT, the GP zones within the grains disappeared and the number of eta ' phases started to decrease with the formation of a large number of eta phases. The eta phase along the grain boundary continuously grew by merging and absorbing solute atoms from the Al matrix near the grain boundaries. This led to the formation of coarsen and interrupted eta phases and the Precipitate-Free Zone (PFZ) along the grain boundaries. Subsequently, the mechanical properties experienced a substantial decrease after the CDCT-Cycle 4 (CDCT-C4).
关键词	Wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy Cyclic deep cryogenic treatment Precipitated phase Mechanical property
资助者	Regional Innovation and Develop- ment Joint Fund of the National Natural Science Foundation of China
DOI	10.1016/j.msea.2024.146838
收录类别	SCI
语种	英语
资助项目	Regional Innovation and Develop- ment Joint Fund of the National Natural Science Foundation of China[U23A20538]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001259744100001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：1[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/321006/187799
专题	中国科学院金属研究所
通讯作者	Guo, Xinpeng; Xue, Peng; Guo, Xuming
作者单位	1.Shenyang Aerosp Univ, Sch Mat Sci & Engn, Shenyang 110136, Peoples R China 2.Univ Wollongong, Sch Mech Mat Mechatron & Biomed Engn, Wollongong, NSW 2522, Australia 3.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Hao, Shuai,Guo, Xinpeng,Cui, Jiayuan,et al. Enhancing the mechanical properties of wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy through cyclic deep cryogenic treatment[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,909:12.
APA	Hao, Shuai,Guo, Xinpeng,Cui, Jiayuan,Xue, Peng,Xu, Rongzheng,&Guo, Xuming.(2024).Enhancing the mechanical properties of wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy through cyclic deep cryogenic treatment.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,909,12.
MLA	Hao, Shuai,et al."Enhancing the mechanical properties of wire arc directed energy deposition Al-Zn-Mg-Cu aluminum alloy through cyclic deep cryogenic treatment".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 909(2024):12.