Mirjam Leban (Avtor), Maja Vončina (Avtor), Tadeja Kosec Mikić (Avtor), Robert Tisu (Avtor), Matevž Barborič (Avtor), Jože Medved (Avtor)

Povzetek

The high temperature corrosion at 650°C in the presence of NaCl at atmospheric pressure of AISI 304L, AISI 309, AISI 310S, AISI 314 and AISI 321 austenitic stainless steel was studied. The specimens were cyclically heated in the furnace and immersed in a 3.5% aqueous NaCl solution after cooling for 15 min. After each cycle, the change in mass of the samples was measured. The corroded samples were analysed by SEM /EDX, and the corrosion products were analysed by XRD. The chloride ions react with the steel surface to form porous and poorly adherent oxides and metal chlorides. After the mass increase during the first exposure cycles, spalling of the oxides occurred. The high temperature austenitic stainless steels (AISI 309, AISI 310S, AISI 314) showed less mass loss than conventional austenitic steels (AISI 304L). Surprisingly, the stainless steel AISI 321 showed a similar low weight loss after the cyclic test as AISI 309, but a detailed analysis of the exposed surfaces after the test showed a similar corrosion attack as for AISI 304. After the cyclic test at high temperature in the presence of NaCl, a higher concentration of Cr and Ni definitely improves the corrosion resistance under the present conditions, but a certain addition of Si is even more obvious.

Ključne besede

austenitic stainless steel;high temperature corrosion;NaCl;exhaust systems;open access;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL NTF - Naravoslovnotehniška fakulteta
Založnik: Plenum Press.
UDK: 669
COBISS: 128327683 Povezava se bo odprla v novem oknu
ISSN: 0030-770X
Št. ogledov: 212
Št. prenosov: 133
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: avstenitna nerjavna jekla;visokotemperaturna korozija;NaCl;izpušni sistemi;
Komentar vira: Online first;
Strani: str. 63-77
Zvezek: ǂVol. ǂ99
Čas izdaje: 2023
DOI: 10.1007/s11085-022-10138-y
ID: 19104515