| Yazarlar |
Öğr. Gör. Dr. İsmail KAYABAŞI
Kastamonu Üniversitesi, Türkiye |
Gökhan Sur
Karabük Üniversitesi, Türkiye |
|
Hasan Gökkaya
Türkiye |
|
Yavuz Sun
Türkiye |
| Özet |
| Functionally Graded Materials (FGMs) are advanced customized engineering materials that gradually and continuously change their composition. The current study investigated the production feasibility and some post-production mechanical/physical properties of B4 C particle-reinforced (avg. 40µm) AA7075 matrix (avg. 60µm) FGM composites with the vertical separator molding technique using the high-temperature isostatic pressing powder metallurgy method. FGMs produced consist of three (0 – 30 – 60 wt. % B4 C) and four (0 – 20 – 40 – 60 wt. % B4 C) layers. The powders were mixed in a power blender mixer for 2h and were placed in the mold sections with a vertical separator. The lid was closed, and a pre-pressure of 10Mpa was applied. The FGM green sheet was transferred from the vertical separator mold to the hot work tool steel with a press. In this mold, FGMs were sintered at 560°C for 30 min under a pressure of 325MPa. Microstructural examinations did not reveal any separation or crack formation in the layer transition regions of the FGMs. In addition, a relatively homogeneous B4 C reinforcing distribution was observed in the layers with a low reinforcement ratio (wt. 20% and 30%) compared to the other layers. The highest hardness was 170 HBN in one layer of the four-layer FGM containing 40% by weight B4 C reinforcement. The highest transverse rupture strength was measured in the test performed from the region with the most reinforcement of the four-layer FGM at 482MPa. |
| Anahtar Kelimeler |
| functionally graded material | hot pressing | powder metallurgy | transverse rupture strength |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | ESCI dergilerinde yayımlanan tam makale |
| Dergi Adı | Engineering, Technology & Applied Science Research |
| Dergi ISSN | 2241-4487 |
| Dergi Tarandığı Indeksler | Emerging Sources Citation Index |
| Makale Dili | İngilizce |
| Basım Tarihi | 08-2022 |
| Cilt No | 12 |
| Sayı | 4 |
| Sayfalar | 8785 / 8790 |
| Doi Numarası | 10.48084/etasr.5025 |
| Makale Linki | http://dx.doi.org/10.48084/etasr.5025 |
| Atıf Sayıları | |
| SCOPUS | 6 |
| Google Scholar | 6 |
