Microstructural stability of gas-atomized Al-based nanophase composites

IMR OpenIR

	Microstructural stability of gas-atomized Al-based nanophase composites
	Wang, JQ ; Tjong, SC
通讯作者	Tjong, SC(aptjong@cityu.edu.hk)
	2001-08-01
发表期刊	MATERIALS TRANSACTIONS
ISSN	1345-9678
卷号	42 期号:8 页码:1710-1716
摘要	The microstructure evolution and grain growth behavior, of gas-atomized Al88Ni9Ce2Fe1 nanocomposite materials, were studied by means of the X-ray diffraction, transmission electron microscopy, and differential scanning calorimetry. The results showed that the microstructure of as-atomized powders are affected by the degree of solute supersaturation in matrix, the microstrain contained, the size, distribution and volume fraction of nanophase precipitated, and these are essentially sensitive to the powder particle sizes. Moreover, there appeared to be a two-stage phase transformation during thermal crystallization, i.e., the precipitation of a-Al and the growth of Al-3(Ni, Fe) nanophase in preference to Al11Ce3 nanophase. respectively. Finally, the grain growth kinetics of (x-Al at temperatures of 250 to 300 degreesC, revealed that the volume-diffusion grain growth mechanism with an activation energy of 1.3 eV is controlling in the nanophase materials.
关键词	nanocomposite rapid quenching microstructure grain growth
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000171112800049
出版者	JAPAN INST METALS
引用统计	被引频次：2[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/321006/113113
专题	中国科学院金属研究所
通讯作者	Tjong, SC
作者单位	1.City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China 2.Chinese Acad Sci, State Key Lab Rapidly Solidified Nonequilibrium A, Inst Mat Res, Shenyang 110015, Peoples R China
推荐引用方式 GB/T 7714	Wang, JQ,Tjong, SC. Microstructural stability of gas-atomized Al-based nanophase composites[J]. MATERIALS TRANSACTIONS,2001,42(8):1710-1716.
APA	Wang, JQ,&Tjong, SC.(2001).Microstructural stability of gas-atomized Al-based nanophase composites.MATERIALS TRANSACTIONS,42(8),1710-1716.
MLA	Wang, JQ,et al."Microstructural stability of gas-atomized Al-based nanophase composites".MATERIALS TRANSACTIONS 42.8(2001):1710-1716.