論文

査読有り
2014年11月

Size dependence of fatigue damage in sub-micrometer single crystal gold

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
  • Hui Fang
  • ,
  • Ryosuke Shiohara
  • ,
  • Takashi Sumigawa
  • ,
  • Takayuki Kitamura

618
開始ページ
416
終了ページ
423
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.msea.2014.09.017
出版者・発行元
ELSEVIER SCIENCE SA

In fatigue, micrometer and sub-micrometer metal components do not have sufficient space to form persistent slip band (PSB) structures, which bring about the extrusions/intrusions with the size of a few micrometers in bulk metal. The characteristic feature of fatigue behavior at this scale is investigated using resonance vibration fatigue experiments on single crystal gold cantilevers of various sizes. Fatigue damage of extrusion/intrusion is formed on the cantilever surface in all specimens. The width of the extrusion/intrusion decreases with the size of cantilever, from hundreds to tens nanometers, which is much smaller than that in bulk components. And the slip traces formation is spatially periodic. The resolved shear stress to form an extrusion/intrusion is strongly dependent on the specimen size and is much higher than that in the bulk. (C) 2014 Elsevier B.V. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/j.msea.2014.09.017
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000344439500050&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.msea.2014.09.017
  • ISSN : 0921-5093
  • eISSN : 1873-4936
  • Web of Science ID : WOS:000344439500050

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