Corrosion of Ferritic and Ferritic-Martensitic Steels in NaCl-KCl-VCl2 Melts / Polovov I. B.,Vinogradov D. A.,Abramov A. V.,Shak A. V.,Volkovich V. A.,Rebrin O. I.,Griffiths T. R. // . - 2012. - V. 50, l. 11. - P. 699-709.

ISSN/EISSN:

1938-5862 / нет данных

Type:

Proceedings Paper

Abstract:

The corrosion resistance of ferritic (08Kh17T) and ferritic-martensitic (12Kh13) type steels was investigated at 750 degrees C in NaCl-KCl-VCl2 melts. The mechanism of corrosion of 12Kh13 ferritic-martensitic steel in NaCl-KCl-VCl2 melts includes two parallel processes: formation of new excessive phases inducing Fe3C (sigma-phase)vertical bar melt vertical bar steel microgalvanic pairs, and reaction of most electronegative steel components (Mn and Cr) with V3+ ions formed due to disproportion of V2+. Contacting samples of 08Kh17T with NaCl-KCl-VCl2 melts resulted in no structural changes in the steel samples. In this case the mechanism of corrosion involves only one stage: disproportion reaction of V(II) with the formation V-Fe alloy and V3+ ions and further oxidation of chromium in the steel by V(III). It was shown, that the presence of a suitable reducing agent in the contact with the melt (for example, metallic vanadium) can prevent the steel destruction.

Author keywords:

STAINLESS-STEELS; HEAT-TREATMENT; SENSITIZATION; STABILIZATION; RESISTANCE

DOI:

10.1149/05011.0699ecst

Web of Science ID:

ISI:000338019200071

Соавторы в МНС:

Другие поля

Поле	Значение
Editor	Reichert, WM and Mantz, RA and Trulove, PC and Ispas, A and Fox, DM and Mizuhata, M and DeLong, HC and Bund, A
Booktitle	MOLTEN SALTS AND IONIC LIQUIDS 18
Series	ECS Transactions
Note	18th International Symposium on Molten Salts and Ionic Liquids as part of the 222nd Meeting of the Electrochemical-Society, Honolulu, HI, OCT 07-12, 2012
Organization	Electrochem Soc; Electrochem Soc, Phys \& Analyt Electrochemistry Div; Electrochem Soc, Electrodeposit Div; Electrochem Soc, Energy Technol Div; Koei Chem Co
Publisher	ELECTROCHEMICAL SOC INC
Address	65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
Language	English
ISBN	978-1-60768-359-9
Keywords-Plus	STAINLESS-STEELS; HEAT-TREATMENT; SENSITIZATION; STABILIZATION; RESISTANCE
Research-Areas	Electrochemistry; Materials Science
Web-of-Science-Categories	Electrochemistry; Materials Science, Multidisciplinary
ResearcherID-Numbers	Volkovich, Vladimir/K-8339-2012
ORCID-Numbers	Volkovich, Vladimir/0000-0003-4438-1194
Number-of-Cited-References	21
Usage-Count-Last-180-days	8
Usage-Count-Since-2013	17
Doc-Delivery-Number	BA8DY