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金属Cr介在物を含有する9Cr-ODS鋼の高温組織変化

Microstructure characterization of oxide dispersion strengthened steels containing metallic chromium inclusions after high-temperature thermal aging

大塚 智史   ; 矢野 康英  ; 丹野 敬嗣  ; 皆藤 威二 ; 田中 健哉

Otsuka, Satoshi; Yano, Yasuhide; Tanno, Takashi; Kaito, Takeji; Tanaka, Kenya

BOR-60において9Cr-ODS鋼の照射試験を実施したところ、これまでに報告例のない異常組織変化が発生した。この組織変化を再現するために実施した欠陥含有ODS鋼の高温熱時効試験結果について報告する。

In the neutron irradiation test of 9Cr-ODS steel using a Russian experimental fast reactor BOR-60, anomalous microstructure change had occurred. This report describes the high-temperature thermal aging test results of defective 9Cr-ODS steel containing metallic Cr inclusions, which was carried out with the intention of reproducing the anomalous microstructure change in the BOR-60 irradiation test.

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