Effect of Nano Hexagonal Boron Nitride Lubricant Additives on the Friction and Wear Properties of AISI 4140 Steel

ÇELİK O. N., Ay N., GÖNCÜ Y.

PARTICULATE SCIENCE AND TECHNOLOGY, cilt.31, sa.5, ss.501-506, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 31 Sayı: 5
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1080/02726351.2013.779336
  • Dergi Adı: PARTICULATE SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.501-506
  • Anahtar Kelimeler: Friction, Lubricant, Nano hexagonal boron nitride, Nanoparticles, Wear, TRIBOLOGICAL PROPERTIES, ZNO NANOPARTICLES, BEHAVIOR, PERFORMANCE, GRAPHITE, MOS2, SIZE, OILS, CUO
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

The aim of this study was to investigate the effects of nano hexagonal boron nitride(hBN) particles on the friction and wear properties of AISI 4140 steel material when the hBN particles are used as an oil additive. Nano hexagonal boron nitride powders, which were produced using a special process, were dispersed in engine oil (SAE10W) to enhance lubrication. The amount of nano hexagonal boron nitride in the engine oil was varied from 0 to 10% by volume, and four different lubricant samples were prepared. Wear tests were conducted using ball-on-disc geometry. The worn surfaces of substrates were analyzed using scanning electron microscopy (SEM) and energy-dispersive x-ray spectroscopy (EDS). The experiments showed that the nano hexagonal boron nitride particles that were used as an oil additive affected the friction and wear behavior. A 14.4% improvement in the friction coefficient and a 65% decrease in the wear rate were achieved through the use of the nano hBN as an oil additive.