A comparison between the chemical behaviour of lead-gold and lead-bismuth eutectics towards 316L stainless steel

Heinitz, Stephan; Schumann, D.; Neuhausen, J.; Köchli, S.; Thomsen, K.; Platacis, E.; Lielausis, O.; Bucenieks, I.; Zik, A.; Romancuks, A.; Kravalis, K.; Buligins, L.; Türler, A. (2013). A comparison between the chemical behaviour of lead-gold and lead-bismuth eutectics towards 316L stainless steel. Radiochimica acta, 101(10), pp. 637-643. OLDENBOURG WISSENSCHAFTSVERLAG 10.1524/ract.2013.2063

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Lead-gold eutectic (LGE) has been recently proposed as an alternative target material for high power spallation sources. In order to compare the corrosive properties of LGE to the better-studied eutectic of lead-bismuth (LBE), an isothermal twin-loop made of SS 316L was built and operated at the Institute of Physics of the University of Latvia. We have measured the concentration of steel alloying elements dissolved in both alloys at the end of two test campaigns via ICP-OES. In case of LGE, a pronounced concentration increase of Fe, Ni, Mn and Cr is found in the liquid metal, which is significantly higher compared to LBE. Similar results were obtained during complementary investigations on material samples exposed to both alloys in this twin-loop at 400 ◦C and 450 ◦C. These findings indicate that in contact with LGE, SS 316L steel suffers from substantial chemical attack. Detailed investigations using structure materials other than SS 316L have to be undertaken before qualifying LGE as a serious alternative to LBE.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Türler, Andreas

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

0033-8230

Publisher:

OLDENBOURG WISSENSCHAFTSVERLAG

Language:

English

Submitter:

Franziska Bornhauser-Rufer

Date Deposited:

04 Apr 2014 19:18

Last Modified:

27 Apr 2018 11:14

Publisher DOI:

10.1524/ract.2013.2063

BORIS DOI:

10.7892/boris.46301

URI:

https://boris.unibe.ch/id/eprint/46301

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