| Yazarlar |
Doç. Dr. Süleyman KILIÇ
Kırşehir Ahi Evran Üniversitesi, Türkiye |
İlyas Kacar
Niğde Ömer Halisdemir Üniversitesi, Türkiye |
|
Mevlüt Şahin
Niğde Ömer Halisdemir Üniversitesi, Türkiye |
|
Fahrettin Öztürk
Ankara Yıldırım Beyazıt Üniversitesi, Türkiye |
|
Oğuz Erdem
Kırşehir Ahi Evran Üniversitesi, Türkiye |
| Özet |
| Aluminum alloys of the 7xxx series (AA7075) are preferred in the aerospace and automotive industries due to their low densities, high strength, good corrosion resistance properties. Additionally, these alloys show the most effective aging properties among aluminum alloys. For this reason, it is very important to determine the most appropriate aging parameters for microstructural development. Literature review reveals that the effect of pre-strain on springback has not been studied yet. In this study, the effects of aging temperature, time, and pre-strain on mechanical properties are investigated for AA7075. Precipitates present in solid solutions of AA7075 and their effects are examined. Results reveal that MgZn2 precipitation is not observed at aging temperatures of 120 and 160 degrees C. After the formation of MgZn2 precipitates, microstructure becomes softer when aging continues at a higher temperature or longer period of time. It is clearly seen that pre-strain causes Portevin-Le Chatelier (PLC) effect after aging at 120 and 160 degrees C for aging times of 30 and 90 minutes. |
| Anahtar Kelimeler |
| 7XXX | AA7075 | aging | pre-strain | mechanical properties | springback |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS |
| Dergi ISSN | 1516-1439 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q4 |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2019 |
| Cilt No | 22 |
| Sayı | 5 |
| Sayfalar | 13 / 13 |
| Doi Numarası | 10.1590/1980-5373-MR-2019-0006 |
| Makale Linki | http://dx.doi.org/10.1590/1980-5373-mr-2019-0006 |
| Atıf Sayıları | |
| WoS | 29 |
| SCOPUS | 36 |
| Google Scholar | 50 |
