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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
Source PublicationCHINESE ACAD SCIENCES, INST METAL RESEARCH
ISSN1006-7191
Volume30Issue:10Pages:965-972
AbstractThree 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.
description.department[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
KeywordNi-al Foams Vapor Aluminizing Oxidation Compression
Subject AreaMetallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51275506]
Indexed BySCI
Language英语
WOS IDWOS:000414264900006
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79055
Collection中国科学院金属研究所
Corresponding AuthorDuan, DL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
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.
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