Two-stage aging treatment to accelerate aging kinetics without impairing strength in B<sub>4</sub>C/7A04Al composite

doi:10.1007/s11431-024-2658-y

IMR OpenIR

	Two-stage aging treatment to accelerate aging kinetics without impairing strength in B₄C/7A04Al composite
	Chen, Yuntao 1,2; Ma, Guonan 3; Zhu, Shize 1; Wang, Dong 1; Xiao, Bolv 1; Ma, Zongyi 1
通讯作者	Zhu, Shize(szzhu16s@imr.ac.cn)
	2024-08-01
发表期刊	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
ISSN	1674-7321
卷号	67 期号:8 页码:2485-2492
摘要	Aging treatments are the key process to obtain satisfactory strength for 7xxxAl alloys and their composites. However, traditional single-stage (SS) aging is time-consuming to reach a peak strength condition. In this study, an efficient 120 degrees C + 160 degrees C two-stage (TS) aging treatment was proposed on a B4C/7A04Al composite fabricated via powder metallurgy (PM) technology, which could acquire similar peak-aging strength but only took about 15% of the time compared to traditional 120 degrees C SS aging. The evolution of precipitation during the TS aging was investigated, as well as those of the 7A04Al alloys for comparison. In the second stage aging process, the higher aging temperature accelerated the nucleation of eta ' phases inside the grains and thus increased the density of precipitates. Moreover, the short aging time limited the coarsening of precipitates and the broadening of precipitate-free zones. The above factors were beneficial for quickly obtaining satisfactory precipitation strengthening effects. The B4C/7A04Al composite exhibited slower aging kinetics than the 7A04Al alloy in the TS aging. Mg elements consumption by the chemical reaction between B impurities introduced by B4C particles and the Al matrix was considered to potentially retard the aging kinetics of the B4C/7A04Al composite. Nevertheless, the precipitation sequence was not affected.
关键词	aluminum matrix composites aging treatment powder metallurgy mechanical properties precipitation
资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation ; Project Funded by China Postdoctoral Science Foundation ; Natural Science Foundation of Liaoning Province ; Liaoning Revitalization Talents Program
DOI	10.1007/s11431-024-2658-y
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2022YFB3707405] ; National Natural Science Foundation of China[U22A20114] ; National Natural Science Foundation of China[52301200] ; Guangdong Basic and Applied Basic Research Foundation[2021A1515110525] ; Project Funded by China Postdoctoral Science Foundation[2023M733573] ; Natural Science Foundation of Liaoning Province[2023-BS-020] ; Liaoning Revitalization Talents Program[XLYC2007009]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS记录号	WOS:001276087100002
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/188424
专题	中国科学院金属研究所
通讯作者	Zhu, Shize
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Ctr Excellence Adv Mat, Dongguan 523808, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yuntao,Ma, Guonan,Zhu, Shize,et al. Two-stage aging treatment to accelerate aging kinetics without impairing strength in B₄C/7A04Al composite[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2024,67(8):2485-2492.
APA	Chen, Yuntao,Ma, Guonan,Zhu, Shize,Wang, Dong,Xiao, Bolv,&Ma, Zongyi.(2024).Two-stage aging treatment to accelerate aging kinetics without impairing strength in B₄C/7A04Al composite.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,67(8),2485-2492.
MLA	Chen, Yuntao,et al."Two-stage aging treatment to accelerate aging kinetics without impairing strength in B₄C/7A04Al composite".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 67.8(2024):2485-2492.