We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Sıcak Presleme Yöntemi ile Üretilen Cu-Cr Alaşımlarının Sertlik ve Elektriksel İletkenlik Özellikleri Üzerine Mekanik Alaşımlama Süresinin Etkisi.
- Authors
Çolak, Hamza; Akçay, Serhatcan Berk; Varol, Temel; Güler, Onur; Aksa, Hüseyin Can
- Abstract
This study concentrated on alloying 0.5% chromium reinforced copper particles by weight by mechanical alloying method according to different alloying times and intensifying the produced powders by hot press method. 10:1 ball:powder ratio and 400 rpm rotation speed were selected as mechanical alloying parameters and the times were determined as 0, 0.5, 1, 2 and 4 hours as variable. Hot pressing parameters were used as constant in all experiments and were determined as 500 â°C and 600 MPa. As a result of the experiments, it was determined that the powders with initially spherical and irregular morphology had a flake-like morphology after 0.5 hours of mechanical alloying. In addition, as a result of the experiments, the highest specific surface area was obtained after 1 hour of mechanical alloying and was measured as 0.0667 m2/g. The lowest and highest hardness values of the compact samples produced within the scope of this study belong to the samples that were not mechanically alloyed and subjected to 1 hour mechanical alloying, respectively, and were measured as 71.97 HB and 99.12 HB. The highest electrical conductivity value belongs to the sample subjected to mechanical alloying process for 4 hours and it was measured as 91.27% IACS. In this study, the effects of time, which is one of the mechanical alloying process parameters, on the morphology and size of the particles, the microstructure and physical and mechanical properties of the compact material were determined.
- Subjects
MECHANICAL alloying; HOT pressing; MECHANICAL behavior of materials; ALLOY powders; POWDER metallurgy; ELECTRIC conductivity; CHROMIUM alloys
- Publication
Karaelmas Science & Engineering Journal / Karaelmas Fen ve Mühendislik Dergisi, 2022, Vol 12, Issue 1, p47
- ISSN
2146-4987
- Publication type
Article
- DOI
10.7212/karaelmasfen.987530