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微小試験片用曲げ疲労試験機の性能評価試験

Performance test of bend fatigue testing machine for small specimens

遠藤 慎也; 菊地 賢司; 斎藤 滋   ; 濱口 大; Yong, D.*

Endo, Shinya; Kikuchi, Kenji; Saito, Shigeru; Hamaguchi, Dai; Yong, D.*

スイス・ポールシェラー研究所(PSI)の中性子源SINQで580MeVの陽子を照射した材料の照射後試験(引張,曲げ疲労,TEM観察等)を国際共同で実施している。曲げ疲労試験片が多数PSIのホット施設に残され、試験が未実施である。そこで、核変換実験施設の設計に資する材料データを取得するため、JAEAが開発した疲労試験機をPSIホットラボに設置した。未照射材を用いて試験機の性能確認を行った。また、破断後のSEM及び光学顕微鏡による観察を行い、疲労破壊特性を調べた。今後、PSIで照射材の疲労試験が実施される予定である。

Post Irradiation Examination (PIE) of materials irradiated at SINQ, with 580 MeV proton beam, of PSI in Switzerland, has been performed under an international cooperation, which covers tensile, bending fatigue and TEM observation. There are a number of irradiated materials stored at hot laboratory and PIE has not conducted yet at PSI. We set up testing machine, developed at JAEA, to the hot laboratory of PSI in order to obtain materials design data base useful for a construction of nuclear transmutation facility. Testing machine performance was investigated by using un-irradiated specimens. Optical and SEM observation of fractured specimen was done and failure mechanism was investigated. PIE is to be done at PSI.

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