Microstructure and Dry Sliding Wear Behaviors of Microwave-Sintered Al-4.4Cu-0.7 Mg-0.6Si-B4C/nGr Hybrid Composites
| dc.contributor.author | Ayvaz, M | |
| dc.date.accessioned | 2025-04-10T10:25:45Z | |
| dc.date.available | 2025-04-10T10:25:45Z | |
| dc.description.abstract | In recent years, more advanced mechanical and tribological properties have been needed in aluminum matrix composites due to the increasing variety of applications. For this purpose, second-generation aluminum matrix hybrid composites that have two or more different particle reinforcements are being developed today. In this study, in order to improve tribological and microstructural properties, nano-sized graphite and B4C-reinforced Al-4.4Cu-0.7 Mg-0.6Si aluminum alloy hybrid composites were produced. As a sintering method, the microwave sintering technique, which is one of the fast sintering methods, was preferred to prevent and/or minimize the formation of unwanted reaction products. In Al-4.4Cu-0.7 Mg-0.6Si-B4C/nGr hybrid composites, 4 different (3, 6, 9 and 12 wt %) B4C and 1 wt % nGr reinforcements were used. Raw samples, compressed by the one-way cold pressing method under 600 MPa pressure, were sintered in the microwave oven at 550 degrees C temperature for 60 min. In XRD analyses, whereas any unwanted reaction product (Al4C3, Al3BC, etc.) was not detected, theta-Al2Cu precipitate formations were detected. In hybrid composites where no graphite agglomeration was observed within the matrix, the highest hardness value (103.9 H-v0.05) was determined in the sample containing 6 wt % B4C and the lowest specific wear rate (0.271 x 10(-3) mm(3)/Nm) was determined in the sample containing 12 wt % B4C. | |
| dc.identifier.e-issn | 0975-1645 | |
| dc.identifier.issn | 0972-2815 | |
| dc.identifier.uri | http://hdl.handle.net/20.500.14701/33499 | |
| dc.language.iso | English | |
| dc.title | Microstructure and Dry Sliding Wear Behaviors of Microwave-Sintered Al-4.4Cu-0.7 Mg-0.6Si-B4C/nGr Hybrid Composites | |
| dc.type | Article |