検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Integrity assessment of aged and on-site welded joints in LMFR

None

若井 隆純 ; 鬼澤 高志  ; 安藤 勝訓 ; 青砥 紀身 ; Martin, L.*

Wakai, Takashi; Onizawa, Takashi; Ando, Masanori; Aoto, Kazumi; Martin, L.*

経済性向上のための有効な一方策であるプラント長寿命化を図るには、損傷を受けた機器を途中で交換しながらプラントを運転することが考えられ、この場合、現地溶接継手が発生する。現地溶接継手の健全性評価のために、金属組織学的な検討と、機械強度試験を行っている。本研究では、現地溶接継手と経年化溶接継手の組織の比較等を行い、現地溶接による入熱が経年化材に及ぼす影響について考察した。

For elongation of the plant life, damaged pipes and/or components should be replaced during the plant service period. In this case, some on-site welded joints may take place. In order to assess the structural integrity of such on-site welded joints, metallurgical examination and mechanical tests have been conducted. Comparing the microstructures of aged factory welded joints and those of newly produced on-site welded joints made of an austenitic stainless steel, the influence of heat input during the on-site welding process on the integrity of the joints are discussed.

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.