検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Effects of heat treatments and addition of minor elements of boron and nitrogen on mechanical properties and microstructures of reduced-activation ferritic/martensitic steel

低放射化フェライト/マルテンサイト鋼の機械特性と微細組織に及ぼすマイナー元素であるボロンと窒素の添加及び熱処理の効果

若井 栄一; 安堂 正己; 大久保 成彰

Wakai, Eiichi; Ando, Masami; Okubo, Nariaki

核融合原型炉のための低放射化フェライト鋼は1980年代から開発が進められている。この鋼は核融合原型炉の第一壁や構造材料及びIFMIFのターゲットアセンブリやターゲット背面壁の第一候補材料となっている。本研究では、この鋼に関する2つの課題を調べた。その概略を以下に示す。(1)照射損傷を含む、低放射化フェライト鋼の微細組織や強度特性への初期熱処理は、核融合原型炉の設計に大変重要である。(2)この鋼の微細組織や強度特性へ及ぼすHeやH生成の効果は核融合原型炉の設計評価に本質的なものであり、我々はIFMIFのような核融合模擬照射環境下でこの鋼を調べ、評価をしなければならないと考えられる

The reduced-activation ferritic/martensitic (RAFM) steels for the fusion DEMO reactor have been developing from around the 1980s. RAFM steels are the first candidate materials for the first wall and blanket structure of fusion DEMO reactors, the target back-plate and the target assembly of IFMIF. In this study, two subjects had been examined and are summarized as below: (1) Effect of initial heat treatment on the microstructures and mechanical properties of RAFM steels, including irradiation damage, is very important to design the fusion DEMO reactors and also control the changes of mechanical properties after the irradiation. (2) Effects of He and H production on the microstructures and mechanical properties of RAFM steels, including irradiation damage, are essential in the evaluation of design of fusion DEMO reactor, and we have to check and evaluate them in Fusion irradiation environment like IFMIF.

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.