圧力技術
Online ISSN : 1347-9598
Print ISSN : 0387-0154
ISSN-L : 0387-0154
論文
石油精製圧力容器の補修溶接性に関する研究
第2報 補修部の機械的性質の評価と補修溶接施工指針の提案
茅野 林造長谷川 龍雄井上 洋一
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2003 年 41 巻 5 号 p. 243-251

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In previous report, authors simulated actual pressure vessel repair weld exposed at high temperature and high pressure hydrogen by using large size test specimen which exceeds 100mm thickness. In this paper, we confirmed mechanical properties of repair weld which temper embrittlement susceptibility was different by using 2. 25Cr-1Mo steel test specimens of two kinds of chemical composition. And we examined the effect of the temper embrittlement on the serviceability after repair welding. Next, the possibility of PWHT omission after repair welding was verified by the measurement of the residual stress. Finally, repair welding guideline was proposed including these test results.

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© 2003 一般社団法人 日本高圧力技術協会
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