Refine your search:     
Report No.

Interaction of zircaloy and molten mixture of stainless steel-B$$_{4}$$C at elevated temperatures

Pham, V. H.   ; Matsuura, Suguru*; Nanko, Makoto*; Nagae, Yuji ; Kurata, Masaki 

In this study, soaking experiments of Zry plates in molten SS-B$$_{4}$$C were conducted to investigate the recession rate of Zry plates in molten SS-B$$_{4}$$C at 1175-1225$$^{circ}$$C. The molten SS-B$$_{4}$$C mixture was prepared by heat-treatment at 1400$$^{circ}$$C for 12 h of a powder mixture containing 5 mol% B$$_{4}$$C and stainless steel. After decreasing temperature to the testing temperatures, Zry plates were soaked in the molten mixture for 0-60 min. After soaking tests, the Zry plates were pulled out of the molten mixture. The remaining thickness of Zry plates after the tests were measured by using optical microscope. To understand the influences of alloying elements in Zry and SS, three other sets of experiments (Zr plates in Fe-B$$_{4}$$C, Zr plates in SS-B$$_{4}$$C and Zry plates in Fe-B$$_{4}$$C) were also conducted. Results of the study indicated that the thickness of Zry plates decreased linearly with increase of soaking duration. The recession rate of Zry plates was increase with increase of testing temperatures. The value of apparent activation energy on the thickness recession rate of Zry plates was determined to be 333 kJ/mol. The alloying elements in SS showed a positive effect on suppression of Zry corrosion. In contrast, the alloying elements in Zry showed a negative effect on the process.



- Accesses





[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.