The Effect of Boron Nitride on Tribological Behavior of Mg Matrix Composite at Room and Elevated Temperatures


AYDIN F. , Turan M. E.

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, cilt.142, 2020 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 142 Konu: 1
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1115/1.4044858
  • Dergi Adı: JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME

Özet

The goal of the study is to examine the dry sliding wear behavior of pure Mg and Mg/nanoboron nitride (BN) composite at elevated temperatures. The wear behavior of the samples was evaluated under loads of 5, 10, and 20 N, at sliding speed of 80, 130, and 180 mm s(-1) and at temperatures of 25, 100, and 175 degrees C. The examination of worn surface, counterface, and wear debris was performed. The results showed that nano-BN particles lead to substantial enhancement of wear resistance for both room and elevated temperatures. Mg/0.25 BN has lower coefficient of friction values due to the presence of BN which act as solid lubricant. The wear mechanisms are thermal softening, melting, oxidation, abrasion, and delamination.