検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Influence of H and He on corrosion behavior of ion irradiated stainless steel

ステンレス鋼イオン照射材の腐食挙動に及ぼす水素及びヘリウムの影響

根本 義之  ; 三輪 幸夫; 辻 宏和; 塚田 隆 ; 阿部 弘亨*; 関村 直人*

Nemoto, Yoshiyuki; Miwa, Yukio; Tsuji, Hirokazu; Tsukada, Takashi; Abe, Hiroaki*; Sekimura, Naoto*

現在、軽水炉の高経年化との関連において重要な検討課題とされているオーステナイト系ステンレス鋼の照射誘起応力腐食割れ(IASCC: Irradiation Assisted Stress Corrosion Cracking)の基礎的な研究のため、照射材における腐食挙動の評価方法の開発及び解析を行った。イオン照射により水素(H),ヘリウム(He)の注入量を変化させて照射を行った。照射材の腐食挙動の評価には原子間力顕微鏡(AFM: Atomic Force Microscope)を適用した。その結果、照射材の腐食量の評価に成功し、照射条件と腐食挙動の相関について検討した。

The aim of this work is to evaluate corrosion behavior of irradiated materials for mechanistic understanding of irradiation assisted stress corrosion cracking (IASCC). Solution annealed high purity Fe-18Cr-12Ni specimens were used in this study. H and He were implanted during irradiation with 12MeV Ni$$^{3+}$$ ion at 573K. After corrosion procedure, the specimens were examined with atomic force microscope (AFM) to evaluate corrosion behavior. It was shown that the corroded volume of irradiated area increased with radiation damage. H implantation at lower temperature accelerated corrosion. He implantation suppressed corrosion.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.