Strong and ductile Al-Zn-Mg-Zr alloy obtained by equal angular pressing and subsequent aging

doi:10.1016/S1003-6326(22)65884-9

IMR OpenIR

	Strong and ductile Al-Zn-Mg-Zr alloy obtained by equal angular pressing and subsequent aging
	Tang, Lei 1; Peng, Xiao-yan 2,3; Jiang, Fu-qing 4; Li, Yao 2; Xu, Guo-fu 2,3
通讯作者	Xu, Guo-fu(csuxgf66@csu.edu.cn)
	2022-05-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	32 期号:5 页码:1428-1441
摘要	An ultrafine-grained Al-Zn-Mg-Zr alloy with superior mechanical performance was obtained by high passes of equal angular pressing (ECAP) and subsequent aging. After 8 ECAP passes and aging, the yield strength (YS) and ultimate tensile strength (UTS) of the solid-solutioned alloy are significantly improved from (98 +/- 10) and (226 +/- 7) MPa to (405 +/- 9) and (427 +/- 9) MPa, respectively. A large elongation is also maintained ((17.4 +/- 2.5)%). The microstructure features including grain refinement, morphology of precipitates, and dislocation density, were revealed with multiscale characterizations, including transmission electron microscopy, electron backscattered diffraction, and X-ray diffraction. After 8 passes of ECAP, the original coarse elongated grains are refined to a unique bimodal grain structure consisting of ultrafine equiaxed and lath-like grains. Additionally, the effects of ECAP and subsequent aging on the strengthening contribution of a variety of strengthening mechanisms, such as dislocation strengthening and precipitation strengthening, were discussed in detail.
关键词	equal angular pressing Al-Zn-Mg-Zr alloy grain refinement strengthening mechanism
资助者	National Key Research and Development Plan, China
DOI	10.1016/S1003-6326(22)65884-9
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Plan, China[2021YFC1910500]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000871776100004
出版者	ELSEVIER
引用统计	被引频次：9[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/321006/176333
专题	中国科学院金属研究所
通讯作者	Xu, Guo-fu
作者单位	1.Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, England 2.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China 3.Cent South Univ, Key Lab Nonferrous Metall Mat Sci & Engn, Minist Educ, Changsha 410083, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Tang, Lei,Peng, Xiao-yan,Jiang, Fu-qing,et al. Strong and ductile Al-Zn-Mg-Zr alloy obtained by equal angular pressing and subsequent aging[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2022,32(5):1428-1441.
APA	Tang, Lei,Peng, Xiao-yan,Jiang, Fu-qing,Li, Yao,&Xu, Guo-fu.(2022).Strong and ductile Al-Zn-Mg-Zr alloy obtained by equal angular pressing and subsequent aging.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,32(5),1428-1441.
MLA	Tang, Lei,et al."Strong and ductile Al-Zn-Mg-Zr alloy obtained by equal angular pressing and subsequent aging".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 32.5(2022):1428-1441.