論文

査読有り
2011年

Neutron Stress Measurement of Coarse Crystal Grain in Aluminium Casting Alloy

RESIDUAL STRESSES VIII
  • Masayuki Nishida
  • ,
  • Takao Hanabusa
  • ,
  • Tatsuya Matsue
  • ,
  • Hiroshi Suzuki

681
開始ページ
109
終了ページ
+
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
DOI
10.4028/www.scientific.net/MSF.681.109
出版者・発行元
TRANS TECH PUBLICATIONS LTD

Internal stresses in aluminum casting alloy were measured by the neutron stress measurement method with the apparatus RESA in the Japan Atomic Energy Agency (JAEA). In most cases, coarse crystal grains are included in aluminum casting alloy. These coarse crystal grains make it extremely difficult to estimate the internal stresses by the neutron diffraction [I]. The two problems arise because of the existence of the coarse crystal grains. The first problem is the production of an unstable diffraction profile in the necessary direction. The second is the edge effect which is generated by the exclusion of the coarse crystal grains from the neutron irradiation area (gage volume). In this study, two kinds of new techniques used were proposed to resolve these problems. Firstly, the elastic theory based on the sin(2)psi method is shown. Diffraction peaks in several directions were found by use of the rocking curve method. Following that, the lattice spaces in each principal direction were calculated from these diffraction peaks using the elastic theory. Secondly, the edge effect was canceled out by the modified measurement method which was done symmetrically. Finally, the aluminum casting sample which included coarse crystal grains was set to the tensile testing machine on RESA's measurement table and the applicability of these new techniques were confirmed experimentally.

Web of Science ® 被引用回数 : 1

リンク情報
DOI
https://doi.org/10.4028/www.scientific.net/MSF.681.109
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000303432600019&DestApp=WOS_CPL
ID情報
  • DOI : 10.4028/www.scientific.net/MSF.681.109
  • ISSN : 0255-5476
  • Web of Science ID : WOS:000303432600019

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