POWDER METALLURGY-BASED PRODUCTION OF HIGH-ENTROPY ALLOYS: STRUCTURAL AND FUNCTIONAL EFFECTS OF SI ADDITION
Yazarlar (3)
Doç. Dr. Mehmet Akkaş Kastamonu Üniversitesi, Türkiye
Doç. Dr. Can Doğan VURDU Kastamonu Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (Diğer hakemli ulusal dergilerde yayınlanan tam makale)
Dergi Adı NWSA Academic Journals
Dergi ISSN 1308-7258
Dergi Tarandığı Indeksler Academic Resource Index (ResearchBib) https://www.researchbib.com ASOS https://asosindex.com.tr/index. Cosmos IF http://www.cosmosimpactfactor.com/page/journals_details/1449.html CrossRef/DOI https://www.crossref.org/titleList/ Google Scholar https://scholar.google.com.tr/ Open Academic Journal Index (OAJI) https://oaji.net/journal-detail.html?number=3278 Scientific Indexing Services https://www.sindexs.org/JournalList.aspx?ID=2692 ScienceGate https://www.sciencegate.ch/#/ Scilit https://www.scilit.net/publisher/1399 Semantic Scholar https://www.semanticscholar.org/ SOBIAD https://atif.sobiad.com/index.jsp?modul=taranan-dergiler
Makale Dili İngilizce Basım Tarihi 04-2025
Cilt / Sayı / Sayfa 20 / 2 / 38–44 DOI 10.12739/NWSA.2025.20.2.2A0203
Makale Linki https://doi.org/10.12739/nwsa.2025.20.2.2a0203
UAK Araştırma Alanları
Toz Metalurjisi
Özet
In this study, a CrMnFeCoNi-based high-entropy alloy (Cantor alloy) was modified by the addition of 5 wt.% silicon (Si) to develop a composite structure with improved microstructural and mechanical properties. Si was selected based on its potential to promote phase stability and reinforcement, as well as its frequent use in similar studies. Elemental powders were homogenized via high-energy ball milling to ensure uniform mixing and enhanced atomic-scale dispersion. The mechanically alloyed powders were compacted through uniaxial cold pressing at 600 MPa to increase green density and interparticle contact. Sintering was conducted at 1000 C in a controlled atmosphere to activate solid-state diffusion and facilitate phase formation and densification. Microstructural characterization was performed using scanning electron microscopy (SEM). The analyses revealed that Si addition influenced the distribution of the reinforcement phase, porosity, and particle morphology. Notably, phase evolution, pore formation, and particle dispersion were strongly affected by both the presence of Si and the applied sintering conditions. The results indicate that 5 wt.% Si significantly enhances microstructural integrity and contributes positively to the overall mechanical performance of the composite material.
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