Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이재성 | - |
dc.date.accessioned | 2020-11-10T05:40:35Z | - |
dc.date.available | 2020-11-10T05:40:35Z | - |
dc.date.issued | 2003-01 | - |
dc.identifier.citation | DEFECT AND DIFFUSION FORUM, v. 216-217, page.113-122 | en_US |
dc.identifier.issn | 1012-0386 | - |
dc.identifier.uri | https://www.scientific.net/DDF.216-217.113 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/155325 | - |
dc.description.abstract | 59Fe and 63Ni radiotracer diffusion was measured in well-compacted and sintered nanocrystalline γ-Fe-40 wt.% Ni alloy by the serial sectioning technique in an extended temperature range from about 600 to 1000K covering Harrison's A, B, and C diffusion regimes. Because the microstructure of the nano-material under investigation revealed two different levels of organization - the individual nano-scale grains were organized in micrometer-size agglomerates - two types of internal interface exist, namely boundaries between the nano-grains and between the agglomerates of these nanocrystallites. A systematics of grain boundary (GB) diffusion regimes in this two-scale structure was elaborated. The absolute values and the Arrhenius parameters of Fe and Ni diffusivity in coarse-grained polycrystalline γ-Fe. The activation enthalpy of diffusion along the inter-agglomerate boundaries is remarkably smaller and the absolute diffusivities lager by two to three orders of magnitude than the corresponding nano-GB diffusion values. The existence of both equilibrium and non-equilibrium internal interfaces is a common feature of such nanocrystalline materials and it has to be taken into account when comparing diffusion data of different studies. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | TRANS TECH PUBLICATIONS LTD | en_US |
dc.subject | Ball Milling | en_US |
dc.subject | Grain Boundary Diffusion | en_US |
dc.subject | Nanostructured Materials | en_US |
dc.subject | Powder Metallurgy (PM) | en_US |
dc.subject | γ-FeNi | en_US |
dc.title | Self-Diffusion Behavior of Nanocrystalline γ-FeNi | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.4028/www.scientific.net/ddf.216-217.113 | - |
dc.relation.journal | DEFECT AND DIFFUSION FORUM | - |
dc.contributor.googleauthor | Divinski, Sergiy V. | - |
dc.contributor.googleauthor | Hisker, Frank | - |
dc.contributor.googleauthor | Kang, Yun Sung | - |
dc.contributor.googleauthor | Lee, Jai Sung | - |
dc.contributor.googleauthor | Herzig, Christian | - |
dc.relation.code | 2012202486 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING | - |
dc.identifier.pid | jslee | - |
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