Miha Hren (Avtor), Tadeja Kosec Mikić (Avtor), Mari Lindgren (Avtor), Elina Huttunen-Saarivirta (Avtor), Andraž Legat (Avtor)

Povzetek

Equipment made of different stainless steels is often used in the hydrometallurgical processing industry. In this study, an electrical resistance sensor was developed for monitoring corrosion in acidic solutions at high temperature. Two types of stainless steel were used as the electrode materials, namely grade 316L stainless steel (EN 1.4404) and grade 2507 duplex stainless steel (EN 1.4410). The materials and sensors were exposed to a 10% H2SO4 solution containing 5000 mg/L of NaCl at various temperatures. Results from the sensors were verified using electrochemical techniques and postexposure examination. Results showed that the microstructure played an important role in the interpretation of corrosion rates, highlighting the importance of using an appropriate stainless steel for the production of sensors. Electrochemical tests and postexposure examination both showed that the grade 2507 had a significantly lower corrosion rate compared to the grade 316L. Under industrial‑process conditions, the results for the grade 2507 sensor were promising with respect to sensor durability and performance, despite the extremely harsh operating environment.

Ključne besede

nerjavno jeklo;hidrometalurška industrija;žveplova kislina;uporovni senzor;korozija;odprti dostop;stainless steel;hydrometallurgical industry;sulphuric acid;electrical resistance sensor;corrosion;open access;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: ZAG - Zavod za gradbeništvo Slovenije
Založnik: MDPI
UDK: 544.5/.6
COBISS: 54442755 Povezava se bo odprla v novem oknu
ISSN: 1424-8220
Št. ogledov: 14
Št. prenosov: 4
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: nerjavno jeklo;hidrometalurška industrija;žveplova kislina;uporovni senzor;korozija;
Komentar vira: Opis vira z dne: 9. 3. 2021; Nasl. z nasl. zaslona; Št. članka: 1449;
Strani: str. 1-17
Letnik: ǂVol. ǂ21
Zvezek: ǂiss. ǂ4
Čas izdaje: 2021
DOI: 10.3390/s21041449
ID: 19478721