Effect of Zr additions on non-metallic inclusions in X11CrNiMo12 steel

Burja, Jaka (avtor), Koležnik, Mitja (avtor), Šetina Batič, Barbara (avtor), Medved, Jože (avtor)

The production of clean steel is associated with high-quality steel grades for demanding applications. The formation of oxide inclusions mainly depends on the deoxidation practice; it is usually carried out through Al additions, but alumina inclusions can have detrimental effects. An alternative zirconium inclusion modification was used in a creep-resistant steel to improve the cleanliness of laboratory-made steel. The thermodynamics behind the inclusion modification are presented, the reaction products are identified and the steel cleanliness improvement is quantified. The resulting influence of zirconium addition on non-metallic inclusions and mechanical properties is discussed. While the Zr additions drastically reduce the non-metallic inclusion size and area, additions above a certain amount result in the formation of zirconium nitrides that ultimately soften the martensitic steel due to the depletion of nitrogen in solid solution.

• Jezik: Angleški jezik
• Ključne besede: clean steel, non-metallic inclusions, Zr addition, creep-resistant steel, microstructure
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: NTF - Naravoslovnotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2020
• Št. strani: 9 str.
• Številčenje: Vol. 10, iss. 9, art. 1183
• PID: 20.500.12556/RUL-134280
• UDK: 621:669:67.017
• ISSN pri članku: 2075-4701
• DOI: 10.3390/met10091183
• COBISS.SI-ID: 27175683
• Datum objave v RUL: 04.01.2022

Gradivo je del revije

• Naslov: Metals
• Skrajšan naslov: Metals
• Založnik: MDPI AG
• ISSN: 2075-4701
• COBISS.SI-ID: 15976214

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 02.09.2020

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: čisto jeklo, nekovinski vključki, Zr dodatek, jeklo proti lezenju, mikrostruktura

Projekti

• Financer: Drugi - Drug financer ali več financerjev
• Program financ.: Republic of Slovenia
• Akronim: ČMRLJ

• Financer: EC - European Commission
• Program financ.: European Regional Development Fund
• Akronim: ČMRLJ