MASS TRANSFER OF STEELS FOR FBR IN SODIUM LOOP.

Hiroshi Susukida, Toshio Yonezawa, Mitsuo Ueda, Takayuki Imazu, Teruyuki Kiyokawa

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In order to grasp quantitatively the corrosion and mass transfer of steels for fast breeder reactor (FBR) in sodium loop and to establish their allowable stress value and corrosion rate, a special sodium loop for material testing was designed and fabricated and the steels were given 3010 hours exposing test in the sodium loop. This paper gives the outline of the sodium loop and the results of the test. Carburization and a slight increase in weight were observed in the specimens of type 304 stainless steel exposed in the sodium loop for 3010 hours, while decarburization was observed in the specimens of 2 1/4 Cr-1 Mo steel. It is considered that these phenomena were caused by the downstream factor of the sodium loop. A remarkable decrease of Charpy absorbed energy was observed in the specimens of type 304 stainless steel exposed in the sodium loop. It is considered that this resulted from the weakening of the grain boundary due to heat history and mass transfer.

Original languageEnglish
Title of host publicationMitsubishi Heavy Ind Mitsubishi Tech Bull
Edition106
Publication statusPublished - 1976 Jun

ASJC Scopus subject areas

  • Engineering(all)

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