Endüstriyel yatak alaşımlarının aşınma davranışlarının karakterizasyonu
The characterization of wear behaviors of industrial sliding-bearing alloys
- Tez No: 90926
- Danışmanlar: PROF. DR. MEHMET DURMAN
- Tez Türü: Yüksek Lisans
- Konular: Metalurji Mühendisliği, Metallurgical Engineering
- Anahtar Kelimeler: Sürtünme, Aşınma, Yatak, Bronz, Çinko- Alüminyum Alaşımı
- Yıl: 1999
- Dil: Türkçe
- Üniversite: Sakarya Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Metalurji Mühendisliği Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 122
Özet
ÖZET
Özet (Çeviri)
THE CHARACTERIZATION OF WEAR BEHAVIORS OF INDUSTRIAL SLIDING-BEARING ALLOYS KEYWORDS: Friction, Wear, Shding-Bearing, Bronze, Zinc-Aluminum Alloys SUMMARY In this study, the wear behaviors of conventionally used bearing phosphorus bronze (RBI) and leaded tin bronzes (RB4 and RB7) and recently developed zinc-aluminum alloys (ZA-8, ZA-12 and ZA-27) were investigated. Two types of testing were applied during the research. First one was pin-on-disc testing. The second type of testing was a sliding-bearing testing. A machine for the later testing was designed and built particularly for this research in the university. Tests have been performed under 10 N, 20 N and 40 N loads with 1.0 m/s and 0.5 m/s speeds. After the applied tests wear rates of materials were measured in terms of weight loss (mg) and volume loss (mm3). In addition, the coefficient of friction of all materials tested have been determined. According to the result obtained from this study, it has been seen that the coefficients of friction of ZA-alloys are lower than that of conventionally used bronze-alloys. This is valid for both pin-on-disc testing and sliding-bearing testing. Similarly, weight loses of ZA-alloys are lower than that of bronze-alloys. As a result of the measurements, the bronze-alloys have been subjected to the weight loses approximately four timesgreater than that of ZA-alloys under 10 N force and nine times greater under 20 N and also fourteen times greater under 40 N force in the period of two hours. As result of this research, it has been understood that the zinc-based alloys showing considerably higher wear resistance and having better mechanical properties can be used instead of conventionally used bronze alloys. XIV
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