CrMnFeCoNi high entropy alloys with carbon and nitrogen

  • The use of interstitial elements has been a key factor for the development of different kinds of steels. However, this aspect has been little explored in the field of high entropy alloys (HEAs). In this investigation, the effect of carbon and nitrogen in a near-equiatomic CrMnFeCoNi HEA is studied, analyzing their impact on the microstructure, and mechanical properties from 77K to 673K, as well as wear, and corrosion resistance. Carbon and nitrogen are part of the FCC solid solution and contribute to the formation of precipitates. An increase in the yield and ultimate tensile strength accompanied with a decrease in the ductility are the main effects of C and N. The impact toughness of the interstitial-free material is higher than that of C and C+N alloyed systems. Compared to CrNi and CrMn austenitic steels, the wear resistance of the alloys at room temperature is rather low. The surface corrosion resistance of HEAs is comparable to austenitic steels; nevertheless HEAs are more susceptible to pitting in chloride containing solutions.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Metadaten
Author:Lukas ChmielakGND, Laís Mújica RonceryGND, Philipp Ludwig NiederhoferGND, Sebastian WeberORCiDGND, Werner TheisenGND
URN:urn:nbn:de:hbz:294-101644
DOI:https://doi.org/10.1007/s42452-021-04814-y
Parent Title (English):SN applied sciences
Subtitle (English):mechanical properties, wear and corrosion resistance
Publisher:Springer International Publishing
Place of publication:Cham
Document Type:Article
Language:English
Date of Publication (online):2023/08/14
Date of first Publication:2021/10/09
Publishing Institution:Ruhr-Universität Bochum, Universitätsbibliothek
Tag:Corrosion; High-entropy alloys; Interstitial elements; Mechanical properties; Wear
Volume:3
Issue:Article 835
First Page:835-1
Last Page:835-12
Note:
Dieser Beitrag ist auf Grund des DEAL-Springer-Vertrages frei zugänglich.
Institutes/Facilities:Institut für Werkstoffe, Lehrstuhl Werkstofftechnik
Institut für Werkstoffe
Dewey Decimal Classification:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften, Maschinenbau
open_access (DINI-Set):open_access
faculties:Fakultät für Maschinenbau
Licence (English):License LogoCreative Commons - CC BY 4.0 - Attribution 4.0 International

OPUS4 Logo