Coupled role of alloying and manufacturing on deep cryogenic treatment performance on high-alloyed ferrous alloys

Jovičević Klug, Patricia (author), Guštin, Agnieszka Zuzanna (author), Klug Jovičević, Matic (author), Šetina Batič, Barbara (author), Lebar, Andrej (author), Podgornik, Bojan (author)

This study focuses on influence of alloying content and type of manufacturing on the effectiveness of deep cryogenic treatment (DCT) on properties of selected high-alloyed ferrous alloys (HAFA): EN HS6-5-2, EN HS6-5-2-5, EN HS6-5-3 and EN HS12-1-4. In order to evaluate the dependency of DCT performance on chemical composition and manufacturing type, the microstructure, hardness, impact and fracture toughness and fatigue properties were analyzed. Additionally, the fatigue data was evaluated using an adapted strain-life model in order to understand the unique effects of DCT with selected factors and provide a model for estimating the fatigue limit of DCT HAFA. The study indicates that DCT affects carbide precipitation, size and morphology of nanocarbides, average distance between carbides and nanocarbides, as well as the base matrix (martensitic laths). The induced microstructural changes cause an overall positive change of mechanical properties in selected HAFA, which correlates well with individual alloying and manufacturing differences. Overall, DCT has greater effect on wrought HAFA than powder metallurgy manufactured HAFA, at which high content of W and Co generally degenerates the DCT induced microstructure modifications.

• Language: English
• Keywords: deep cryogenic treatment, alloying content, manufacturing type, ferrous alloy, carbides precipitation, mechanical properties
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering; ZF - Faculty of Health Sciences
• Publication status: Published
• Publication version: Version of Record
• Year: 2022
• Number of pages: Str. 3184-3197
• Numbering: Vol. 18
• PID: 20.500.12556/RUL-155114
• UDC: 669
• ISSN on article: 2238-7854
• DOI: 10.1016/j.jmrt.2022.04.025
• COBISS.SI-ID: 104363523
• Publication date in RUL: 20.03.2024

Record is a part of a journal

• Title: Journal of materials research and technology
• Shortened title: J. mater. res. technol.
• Publisher: Elsevier
• ISSN: 2238-7854
• COBISS.SI-ID: 519699737

Licences

• License: CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
• Link: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Description: The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

• Language: Slovenian
• Keywords: globoko podhlajevanje, vsebnost legur, tip proizvodnje, železna zlitina, precipitacija karbidov, mehanske lastnosti

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0050
• Name: Kovinski materiali in tehnologije

• Funder: ARRS - Slovenian Research Agency
• Project number: J2-9211
• Name: Izboljšanje lastnosti kovinskih materialov s postopkom podhlajevanja