Synthesis and Compression Property of Oxidation-Resistant Ni-Al Foams

IMR OpenIR

	Synthesis and Compression Property of Oxidation-Resistant Ni-Al Foams
	Zeng, Wen-Wen; Hou, Si-Han; Ding, Xiao-Jun; Duan, De-Li; Li, Shu; Zhang, Shi-Hong; Duan, DL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
	2017-10-01
发表期刊	CHINESE ACAD SCIENCES, INST METAL RESEARCH
ISSN	1006-7191
卷号	30 期号:10 页码:965-972
摘要	Three different Ni-Al foams were synthesized by vapor aluminizing with control of aluminizing time. Oxidation tests under 1100 degrees C and compression tests were conducted to evaluate the oxidation resistance and compression properties of the foams. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS) tests were carried out to study the phase composition and microstructure of Ni-Al foams before and after oxidation. Results showed that vapor aluminizing process did not change the foam macro-and microstructure, and the phase composition became from beta/gamma'-phase to single beta-phase as the aluminizing time extending. The Ni-Al foams possessed excellent oxidation resistance, and decreased Al content increased oxidation weight gain and altered oxidation products. Foams containing single beta-phase presented obvious brittleness under compression tests, but the foam with beta/gamma'-phase exhibited elasticity and toughness to a certain extent. The elasticity and toughness of the foams significantly can be improved after oxidation because of the phase changing in matrix during oxidation, and the pre-oxidized high-Al-content Ni-Al foams exhibited good compression properties, as well as excellent oxidation resistance.; Three different Ni-Al foams were synthesized by vapor aluminizing with control of aluminizing time. Oxidation tests under 1100 degrees C and compression tests were conducted to evaluate the oxidation resistance and compression properties of the foams. X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS) tests were carried out to study the phase composition and microstructure of Ni-Al foams before and after oxidation. Results showed that vapor aluminizing process did not change the foam macro-and microstructure, and the phase composition became from beta/gamma'-phase to single beta-phase as the aluminizing time extending. The Ni-Al foams possessed excellent oxidation resistance, and decreased Al content increased oxidation weight gain and altered oxidation products. Foams containing single beta-phase presented obvious brittleness under compression tests, but the foam with beta/gamma'-phase exhibited elasticity and toughness to a certain extent. The elasticity and toughness of the foams significantly can be improved after oxidation because of the phase changing in matrix during oxidation, and the pre-oxidized high-Al-content Ni-Al foams exhibited good compression properties, as well as excellent oxidation resistance.
部门归属	[zeng, wen-wen] univ chinese acad sci, beijing 100049, peoples r china ; [zeng, wen-wen ; hou, si-han ; ding, xiao-jun ; duan, de-li ; li, shu ; zhang, shi-hong] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
关键词	Ni-al Foams Vapor Aluminizing Oxidation Compression
学科领域	Metallurgy & Metallurgical Engineering
资助者	National Natural Science Foundation of China [51275506]
收录类别	SCI
语种	英语
WOS记录号	WOS:000414264900006
引用统计	被引频次：3[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/321006/79055
专题	中国科学院金属研究所
通讯作者	Duan, DL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Zeng, Wen-Wen,Hou, Si-Han,Ding, Xiao-Jun,et al. Synthesis and Compression Property of Oxidation-Resistant Ni-Al Foams[J]. CHINESE ACAD SCIENCES, INST METAL RESEARCH,2017,30(10):965-972.
APA	Zeng, Wen-Wen.,Hou, Si-Han.,Ding, Xiao-Jun.,Duan, De-Li.,Li, Shu.,...&Duan, DL .(2017).Synthesis and Compression Property of Oxidation-Resistant Ni-Al Foams.CHINESE ACAD SCIENCES, INST METAL RESEARCH,30(10),965-972.
MLA	Zeng, Wen-Wen,et al."Synthesis and Compression Property of Oxidation-Resistant Ni-Al Foams".CHINESE ACAD SCIENCES, INST METAL RESEARCH 30.10(2017):965-972.