Improvement of mechanical properties of NiAl-Cr(Mo) alloy by Ti addition
Yazarlar (2)
Doç. Dr. Hüseyin DEMİRTAŞ Karabük Üniversitesi, Türkiye
Prof. Dr. Ali GÜNGÖR Karabük Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS (Q4) | ||
| Dergi ISSN | 1842-6573 Dergi Bilgileri (2015) | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 07-2015 |
| Cilt / Sayı / Sayfa | 9 / 7 / 981–985 | DOI | – |
| Makale Linki | https://oam-rc.inoe.ro/articles/improvement-of-mechanical-properties-of-nial-crmo-alloy-by-ti-addition/ | ||
| UAK Araştırma Alanları |
Alaşım Geliştirme
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| Özet |
| NiAl based intermetallics have a potential to replace Ni-based superalloys because of their relatively low specific density, high oxidation resistance, high melting temperature and good thermal conductivity [1-3]. However, they have limited applications due to inadequate room temperature ductility and fracture toughness, high temperature strength and creep resistance. Hence, these problems have been the main subjects of extensive research to improve the low and high temperature mechanical properties of NiAl alloys [2-6].To improve the strength, many alloying elements were used to develop new alloys with superior properties [4, 7]. Among them, NiAl-Cr (Mo) eutectic alloy exhibits a good toughness and strength as compared to NiAl [4, 5]. However, its room temperature toughness and high temperature strength still need to be improved. In a previous study, refractory elements like Ti and Hf were introduced into the NiAl-Cr (Mo) based alloy for precipitation of Ni2AlX type Heusler phase [8]. Some studies have shown that the formation of Heusler phase greatly improves the strength of NiAl-Cr (Mo)[9, 10]. K. Hagihara et al.[9] added 3 at.% and 5 at.% Ti into the NiAl-Cr (Mo) and Heusler phase was observed in only 5 at.% Ti added alloy. Another study focused on the effect of Ti on the microstructure of NiAl-Cr (Mo) but the mechanical properties of the alloys were not investigated [11]. Although Ti addition has a promising effect on NiAl-Cr (Mo) eutectic alloys, studies on the low and high temperature properties of Ti containing NiAl-Cr (Mo) alloys are scarce. Therefore, in this study, the effect of Ti addition on the microstructure and mechanical … |
| Anahtar Kelimeler |
| Nickel aluminide | Mechanical properties | NiAl-Cr(Mo) |
